TY - BOOK AU - Bozhkov,P.V. AU - Filonova,L.H. AU - Von Arnold,S. TI - A key developmental switch during Norway spruce somatic embryogenesis is induced by withdrawal of growth regulators and is associated with cell death and extracellular acidification UR - https://drive.google.com/file/d/1HDBnu8EA88xqGaK2x8sTVjzro_tMHnNU/view?usp=drivesdk ER -