TY - RPRT TI - The potato eelworm hatching factor; attempts to prepare artificial hatching agents; some active arylidene-delta beta :gamma-butenolides and related compounds. AU - D H MARRIAN AU - P B RUSSELL AU - A R TODD PY - 1949 DO - 10.1042/bj0450533 UR - https://pubmed.ncbi.nlm.nih.gov/15396620/ ID - 15396620 ER -