CVIKROVÁ, Milena, MALÁ, J., EDER, Josef, HRUBCOVÁ, Marie, VÁGNER, Martin. Abscisic acid, polyamines and phenolic acids in sessile oak somatic embryos in relation to their conversion potential. Plant Physiology and Biochemistry. 1998, 36(3), 247-253. ISSN 0981-9428. E-ISSN 1873-2690.