1. Swedish Sugar Co./Hilleshög Seed Co., Sugar Beet in Sweden. Hilleshögs Frö AB, Box 302, 261 23 Landskrona, Sweden (1968). (Also in the pamphlet “Hilleshög” from the same firm).
2. MUTATIONS AND CROP IMPROVEMENT. II. THE GENUS LUPINUS (LEGUMINOSAE)
3. A. Micke, Fifth Congress of the European Association for Research on Plant Breeding, Milano, pp. 262-268. Pavia, 1968.