L. M. Pena-Rodriguez PENARODRIGUEZ, L. M., & CHILTON, W. S. (1989). VICTOXININE AND PREHELMINTHOSPOROLACTONE, 2 MINOR PHYTOTOXIC METABOLITES PRODUCED BY BIPOLARIS SP, A PATHOGEN OF JOHNSON GRASS .12079. JOURNAL OF NATURAL PRODUCTS, Vol. 52, pp. 899–901. https://doi.org/10.1021/np50064a046