Slaughter, E., Gersberg, R. M.; Watanabe, K.; Rudolph, J.; Stransky, C.; Novotny, T. E. (2011. május 1.). „Toxicity of cigarette butts, and their chemical components, to marine and freshwater fish”. Tobacco Control20 (Supplement 1), i25–i29. o. DOI:10.1136/tc.2010.040170. ISSN0964-4563.
Slaughter, E., Gersberg, R. M.; Watanabe, K.; Rudolph, J.; Stransky, C.; Novotny, T. E. (2011. május 1.). „Toxicity of cigarette butts, and their chemical components, to marine and freshwater fish”. Tobacco Control20 (Supplement 1), i25–i29. o. DOI:10.1136/tc.2010.040170. ISSN0964-4563.