Soja G. Plant development and hormonal status in the Jerusalem artichoke (Helianthus tuberosus L.) / G.Soja,G.Dersch, 1993. - 219-228 S. S. - Текст : непосредственный.
Berichte / OEFZS. 4561 : Harvest dates, fertilizer and varietal effects on yield, concentration and molecular distribution of fructan in Jerusalem artichoke(Helianthus tuberosus L.) / G.Soja,G.Dersch,W.Praznik, 1990. - 9 p. - Текст : непосредственный.