1. Maturation, Desiccation and Encapsulation of Gymnosperm Somatic Embryos;Attree,1999
2. Economic aspects of somatic embryogenesis;Cervelli,1995
3. Somatic embryogenesis and the technology of synthetic seed;Gray,1995
4. Development of an embryogenic system for automated propagation of forest trees;Gupta,1991
5. Somatic embryo germination and desiccation tolerance in conifers;Hay,1999