[Organic agriculture in Austria - the end of an                    illusion? On the occasion of the 80th birthday                    of Ulrich Planck].
Pevetz
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D000383:Agriculture / Q000191:economics / Q000193:education / Q000266:history; D001317:Austria / Q000208:ethnology; D003247:Conservation of Natural Resources / Q000191:economics / Q000266:history; D018556:Crops, Agricultural / Q000191:economics / Q000266:history; D004463:Ecology / Q000191:economics / Q000193:education / Q000266:history; D058870:Food, Organic / Q000191:economics / Q000266:history; D049673:History, 20th Century; D012961:Sociology / Q000191:economics / Q000193:education / Q000266:history