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Programmed Airline Reservations System
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<h2 id="further-reading">Further reading</h2> <ul><li>Winston, Clifford, <a href="https://books.google.com/books?id=jCfkJUL8oV0C">"The Evolution of the Airline Industry"</a>, <a href="/facts/Brookings_Institution_Press/RYVlAU9y">Brookings Institution Press</a>, 1995. <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 0-8157-5843-X. Cf. p. 62.</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Hobson S.J. "ALCS — A high-performance high-availability DB/DC monitor", 1989. ISBN 3-540-51085-0 <a href="/wiki/ISBN_(identifier)" target="_blank">/wiki/ISBN_(identifier)</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Hobson S.J. "ALCS — A high-performance high-availability DB/DC monitor", 1989. ISBN 3-540-51085-0 <a href="/wiki/ISBN_(identifier)" target="_blank">/wiki/ISBN_(identifier)</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Weiner, Eric, "Diagrams of the Pan Am's and NWA's 1988 route system", The New York Times, Sunday, June 11, 1989 <a href="https://www.nytimes.com/1989/06/11/business/diarams-pan-am-s-nwa-s-1988-route-system-pg-1-chart-comparative-strengths.html" target="_blank">https://www.nytimes.com/1989/06/11/business/diarams-pan-am-s-nwa-s-1988-route-system-pg-1-chart-comparative-strengths.html</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> </ol>