1. Asparagus breeding;Ellison,1986
2. 2. Asparagus, 3. Protasparagus, 4. Myrsiphyllum;Clifford,1987
3. Blumengärtnerei, 2. Auflage;Encke,1958
4. Self- and cross-incompatibility in Asparagus officinalis and Asparagus densiflorus cv. Sprengeri;Marcellan;Can. J. Bot.,1996
5. Assessment of hybrids and varieties of Asparagus for resistance to Stemphylium vesicarium;Venezia;Agric. Ric.,1993