TY - RPRT TI - Regularly pulsed neutrinos from supernova SN1987A? AU - Harwit, Martin AU - Wasserman, Ira M. AU - Biermann, Peter L. AU - Meyer, Hinrich PY - 1987 UR - https://ntrs.nasa.gov/citations/19870066809 ID - 19870066809 ER -