Field deposition of Bt transgenic corn pollen: lethal effects on the monarch butterfly[J] . Laura C. Hansen Jesse,John J. Obrycki.  Oecologia . 2000 (2)
Field deposition of Bt transgenic corn pollen: lethal effects on the monarch butterfly[J] . Laura C. Hansen Jesse,John J. Obrycki.  Oecologia . 2000 (2)