1. In vitro propagation of gymnosperms;David,1982
2. Somatic embryogenesis and sphaeroblasts in conifer suspensions;Durzan,1982
3. Biotechnology of forest yield;Farnum;Science,1983
4. The development of somatic embryos in tissue cultures initiated from immature embryos of Picea abies (Norway spruce);Hakman;Plant Science,1985
5. Somatic embryogenesis in sugarcane (Saccharum officinarum L.) I;Ho;The morphology and physiology of callus formation and the ontogeny of somatic embryos. Protoplasma,1983