1. Morphogenetic effects of CO2 in bud cultures of conifers;Bonga,1978
2. Regeneration of Douglas fir plantlets through tissue culture;Cheng;Science,1977
3. Juvenile and adult phases in woody plants;Doorenbos,1965
4. Early flowering of birch and its maintenence in plants regenerated through tissue culture;Huhtinen;Acta Hort,1976
5. Growth, variability and differentiation of callus culture of Chrysanthemum morifolium and Hedera helix;Magrum,1973