![Systems scientists / Academia / Population / Knowledge / Stuart Umpleby / World population / Doomsday / Heinz von Foerster / Demography / Population ecology / Science Systems scientists / Academia / Population / Knowledge / Stuart Umpleby / World population / Doomsday / Heinz von Foerster / Demography / Population ecology / Science](https://www.pdfsearch.io/img/c0562e91062cb728069eb0fc9cfc5305.jpg) Date: 2008-08-11 17:22:20Systems scientists Academia Population Knowledge Stuart Umpleby World population Doomsday Heinz von Foerster Demography Population ecology Science | | Science 25 September 1987, Volume 237, Number 4822, ppWorld Population: Still Ahead of Schedule Twenty-seven years ago Science published a remarkable article, “Doomsday:Add to Reading ListSource URL: www.gwu.eduDownload Document from Source Website File Size: 25,54 KBShare Document on Facebook
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