1.
2.
3.
Geneva, Switzerland : International Union for the Protection of New Varieties of Plants (UPOV), 1970.
English | E241S4 UPOV.P |
4.
5.
6.
7.
8.
9.
Geneva, Switzerland : International Union for the Protection of New Varieties of Plants (UPOV), 1984.
English | E 241 UPOV.INF (F/E/G) |
10.