Setia, Parul, et al. “Various Synthetic Pathways for the Synthesis of 3,4-Disubstituted Isoxazole by One Pot Multicomponent Reaction”. Orbital: The Electronic Journal of Chemistry, vol. 12, no. 4, Dec. 2020, pp. 267-75, https://periodicos.ufms.br/index.php/orbital/article/view/15725.