Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Sierpinski, Z. 1962. A trial of standing trap trees to control secondary insect pests of Scots pine [In Polish, Russian, German summaries] . Ministerstwo Lesnictwa i Przemyslu Drzewnego Institut Badawczy Lesnictwa, Prace 248:211-223.