Petřek, J.; Baloun, J.; Vlašínová, H.; Havel, L.; Adam, V.; Víteček, J.; Babula, P.; Kizek, R. Image Analysis and Activity of Intracellular Esterases As New Analytical Tools for Determination of Growth and Viability of Embryonic Cultures of Spruce (Picea sp.) Treated With Cadmium. Chem. Listy 2007, 101.