Edwards RL, Elsworthy GC. Variegatic acid, a new tetronic acid responsible for the blueing reaction in the fungus Suillus (Boletus) variegatus (Swartz ex Fr.). Chemical Communications. 1967, (8): 373b–374. doi:10.1039/C1967000373B.
Kasuga A, Aoyagi Y, Sugahara T. Antioxidant activity of fungus Suillus bovinus (L: Fr.) O. Kuntze. Journal of Food Science. 1995, 60 (5): 1113–85. doi:10.1111/j.1365-2621.1995.tb06304.x.
Huang YT, Onose J, Abe N, Yoshikawa K. In vitro inhibitory effects of pulvinic acid derivatives isolated from Chinese edible mushrooms, Boletus calopus and Suillus bovinus, on cytochrome P450 activity. Bioscience, Biotechnology, and Biochemistry. 2009, 73 (4): 855–60. PMID 19352038. S2CID 39654350. doi:10.1271/bbb.80759.
Ahmed Z, Langer P. Synthesis of natural pulvinic acids based on a '[3+2] cyclization-Suzuki cross-coupling' strategy. Tetrahedron. 2005, 61 (8): 2055–63. doi:10.1016/j.tet.2004.12.048.
Huang YT, Onose J, Abe N, Yoshikawa K. In vitro inhibitory effects of pulvinic acid derivatives isolated from Chinese edible mushrooms, Boletus calopus and Suillus bovinus, on cytochrome P450 activity. Bioscience, Biotechnology, and Biochemistry. 2009, 73 (4): 855–60. PMID 19352038. S2CID 39654350. doi:10.1271/bbb.80759.
Huang YT, Onose J, Abe N, Yoshikawa K. In vitro inhibitory effects of pulvinic acid derivatives isolated from Chinese edible mushrooms, Boletus calopus and Suillus bovinus, on cytochrome P450 activity. Bioscience, Biotechnology, and Biochemistry. 2009, 73 (4): 855–60. PMID 19352038. S2CID 39654350. doi:10.1271/bbb.80759.