TY - RPRT TI - Potent pyrethroid insecticides from modified cyclopropane acids. AU - M Elliott AU - A W Farnham AU - N F Janes AU - P H Needham AU - D A Pulman PY - 1973 DO - 10.1038/244456a0 UR - https://pubmed.ncbi.nlm.nih.gov/4582505/ ID - 4582505 ER -