1. Regeneration of somatic embryos from protoplasts isolated from an embryogenic suspension culture of white spruce (Picea glauca);Attree;Plant Cell Repts.,1987
2. Somatic embryo development and plant regeneration from embryogenic Norway spruce callus;Becwar;Tappi journal,1987
3. The isolation and culture of protoplasts from an embryogenic cell suspension culture of Picea glauca (Moench) Voss;Bekkaoui;Plant Cell Repts.,1987
4. Freeze-preservation of suspension cultured cells of a gymnosperm, Douglas fir;Binder;Cryobiology,1980
5. Cryopreservation of alkaloid-producing cell cultures of periwinkle (Catharanthus roseus);Chen;Plant Physiol.,1984