1. Bekkaoui F & Franclet A (1986) De l'amélioration de la multiplication végétative in vitro du douglas (pp 63?79). Ann. Rech. Sylvicoles AFOCEL
2. Bonga JM & vonAderkas P (1988) Attempts to micropropagate mature Larix decidua Mill. In: Ahuja MR (Ed) Somatic Cell Genetics of Woody Plants (pp 155?168). Kluwer Academic Publishers, Dordrecht
3. Bonga JM & vonAderkas P (1991) Rejuvenation of tissues from mature conifers and its implication for propagation in vitro. In: Ahuja MR & Libby WJ (Eds) Clonal Forestry: Genetics, Biotechnology and Application. Springer-Verlag, Berlin, (in press)
4. Chalupa V (1985) In vitro propagation of Larix, Picea, Pinus, Quercus, Fagus and other species using adeninetype cytokinins and thidiazuron. Commun. Inst. For. Cech. 14: 65?90
5. Chalupa V (1987) Effects of benzylaminopurine and thidiazuron on in vitro shoot proliferation of Tilia cordata Mill., Sorbus aucuparia L. and Robinia pseudoacacia L. Biol. Plant 29: 425?429