Vlad, I.; Vlad, M.; Motiu, T.; Bartha, S.; Timis, G. V.; Dorog, S.; Chebeleu, M.; Bodog, M.; Budau, R.; Pantea, S. Tulip Bulbs Preparation by Heat Treatment for Forced Culture in Green House. Acta agrar. Debr. 2010, No. I, 70-72. https://doi.org/10.34101/ACTAAGRAR/I/8378.