Title: Biblio RTF Export
Author: Biblio 7.x

H.  Vollrath, ?Medicago sativa in Mitteleuropa angebaut und verwildert??, Gött. Florist. Rundbr., vol. 7, no. 1, pp. 9 - 13, 1973.

L.  Engstrand and Gustafsson, M., ?Drawings of Scandinavian plants: 86-88. Chenopodium L?, Bot. Notiser, vol. 126, no. 2, pp. 135 - 141, 1973.

W. E.  Abel and Austin, D. F., ?Natural hybridization in Ipomoea (Convolvulaceae)?, Amer. J. Bot., vol. 60, pp. 33 - 34, 1973.