Sano Y, Sayama K, Arimoto Y, Inakuma T, Kobayashi K, Koshino H, Kawagishi H (2002). „Ustalic acid as a toxin and related compounds from the mushroom Tricholoma ustale“. Chem. Commun. (13): 1384–85. doi:10.1039/B202607D. PMID12125567.
Sano Y, Sayama K, Arimoto Y, Inakuma T, Kobayashi K, Koshino H, Kawagishi H (2002). „Ustalic acid as a toxin and related compounds from the mushroom Tricholoma ustale“. Chem. Commun. (13): 1384–85. doi:10.1039/B202607D. PMID12125567.