Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Svihra, P. 1973b. Redukovanie populacie lykozruta smrekoveho kyselinou kakodylovou. Pages 672-673 in Vedecke aktuality z polnoh., les. a potrav. Zbornik k I. zjazdu Slov. vedec. prac. v polnohosp., les. a potravin. Bratislava. Vyd. SAV.