ISO/SWS observations of SN 1987A - II. A refined upper limit on the mass of Ti in the ejecta of SN 1987AP. Lundqvist, C. Kozma, J. Sollerman and C. FranssonA&A, 374 2 (2001) 629-637DOI: https://doi.org/10.1051/0004-6361:20010725
Ti in the ejecta of SN 1987ATi in the ejecta of SN 1987A