Avail: BLL (formerly NLL): British Library Lending Division, Boston Spa, Wetherby, Yorkshire, England. Photocopies available from this organization at the price shown. (If none is given, inquiry should be addressed to the BLL.)

Avail: Fachinformationszentrum, Karlsruhe. Sold by the Fachinformationszentrum Energie,
Physik, Mathematik GMBH, Eggenstein Leopoldshafen, Federal Republic of
Germany, at the price shown in deutschmarks (DM).

Avail: Issuing Activity, or Corporate Author, or no indication of availability. Inquiries as to the availability of these documents should be addressed to the organization shown in the citation as the corporate author of the document.

Avail: U.S. Patent and Trademark Office. Sold by Commissioner of Patents and Trademarks, U.S. Patent and Trademark Office, at the standard price of 50 cents each, postage free. (See discussion of patents and patent applications below.)

Avail: ESDU. Pricing information on specific data, computer programs, and details

on ESDU topic categories can be obtained from ESDU International Ltd. Requesters in North America should use the Virginia address while all other requesters should use the London address, both of which are on page vi.

NASA PATENTS AND PATENT APPLICATIONS

Patents and patent applications owned by NASA are announced in STAR under appropriate subject categories and are referenced in the STAR indexes. In the Report/Accession Number Index, patents are indexed by the NASA Case Number (which appears in lieu of the report number in other indexes), the U.S. Patent Number, the U.S. Patent Application Serial Number, and the U.S. Patent Class. Patent applications for which patents have not yet been issued are indexed by the NASA Case Number and the U.S. Patent Application Serial Number.

NASA patent application specifications are sold in paper copy by the National Technical Information Service at price code A02 ($7.00 domestic; $14.00 foreign). Microfiche are sold at price code A01 ($4.50 domestic; $9.00 foreign). The US-Patent-Appl-SN- number should be used in ordering either paper copy or microfiche from NTIS. Printed copies of patents (which are not microfiched) are available for purchase at 50 cents per copy from:

Commissioner of Patents and Trademarks

U.S. Patent and Trademark Office
Washington, D.C. 20231

When ordering patents, the U.S. Patent Number should be used, and payment must be remitted in advance, preferably by money order or check payable to the Commissioner of Patents and Trademarks. Prepaid purchase coupons for ordering are also available from the Patent and Trademark Office. The patents and patent applications announced in STAR are owned by NASA and are available for royalty-free licensing. Requests for licensing terms and further information should be addressed to:

Assistant General Counsel for Patent Matters/Code GP-1
National Aeronautics and Space Administration

Washington, D.C. 20546

ELIGIBILITY AND REGISTRATION FOR NASA INFORMATION PRODUCTS AND SERVICES

A variety of services is available to organizations of the following types that have registered with NASA
to receive specific services or products:

1. NASA offices, research centers, contractors, subcontractors, grantees, and consultants;

2. Other U.S. Government agencies and their contractors;

3. Libraries in the United States that have arrangements with NASA to maintain collections of
NASA documents for public reference;

4. Other organizations in the United States having a need for NASA documents in work related to
aeronautics and space research;

5. Organizations abroad that have established reciprocal document exchange arrangements with
NASA.

Only the central service points or central points of document acquisition and control within qualified
organizations are eligible to register for NASA products and services. Domestic organizations that may
be eligible to receive various classes of NASA publications and services should address their requests
for registration or for further information to:

NASA Scientific and Technical Information Facility

ATTN: Registration Activity

P.O. Box 8757

B.W.I. Airport, Maryland 21240

Organizations abroad should direct requests to the same address, but to the attention of: International
Exchange Program.

AVAILABILITY OF STAR ABSTRACTS ON MICROFICHE

Microfiche of the abstract sections of this issue and other issues of STAR are available on annual
subscription from NTIS, Attn: Subscriptions, 5285 Port Royal Road, Springfield, Virginia 22161. Annual
subscription rates are $60.00 North America; $120.00 foreign. Abstract sections for previous years
retroactive to 1964 are available at the current rates. Microfiche for individual STAR issue abstract
sections are not available.

PUBLIC COLLECTIONS OF NASA DOCUMENTS

DOMESTIC: NASA and NASA-sponsored documents and a large number of aerospace publications are
available to the public for reference purposes at the library maintained by the American Institute of
Aeronautics and Astronautics, Technical Information Service, 555 West 57th Street, 12th Floor, New
York, New York 10019.

EUROPEAN: An extensive collection of NASA and NASA-sponsored publications is maintained by the
British Library Lending Division, Boston Spa, Wetherby, Yorkshire, England for public access. The
British Library Lending Division also has available many of the non-NASA publications cited in Star.
European requesters may purchase facsimile copy or microfiche of NASA and NASA-sponsored
documents, those identified by both the symbols # and from ESA Information Retrieval Service
European Space Agency, 8-10 rue Mario-Nikis, 75738 Paris CEDEX 15, France.

FEDERAL DEPOSITORY LIBRARY PROGRAM

In order to provide the general public with greater access to U.S. Government publications, Congress
established the Federal Depository Library Program under the Government Printing Office (GPO), with
50 regional depositories responsible for permanent retention of material, inter-library loan, and reference
services. Over 1,300 other depositories also exist. A list of the regional GPO libraries appears on the
inside back cover of STAR.