Dostupné online Vetch hairy vetch Hairy vetch http://www.hort.purdue.edu/newcrop/afcm/vetch.html Vicia villosa Hairy Vetch hairy vetch Alternative Field Crops Manual http://www.hort.purdue.edu/newcrop/afcm/vetch.html Բալկազգիների ընտանիք Alternative Field Crops Manual