Observational properties of peculiar core-collapse super-novae producing r-process elementsTatsuki Hasegawa, Masaomi Tanaka, Nobuya Nishimura, Kyohei Kawaguchi, Sei Saito and Nanae DomotoEPJ Web Conf., 260 (2022) 11011DOI: https://doi.org/10.1051/epjconf/202226011011