TY - RPRT TI - Circumstellar material associated with solar-type pre-main-sequence stars - A possible constraint on the timescale for planet building AU - Strom, Karen M. AU - Strom, Stephen E. AU - Edwards, Suzan AU - Cabrit, Sylvie AU - Skrutskie, Michael F. PY - 1989 UR - https://ntrs.nasa.gov/citations/19890051323 ID - 19890051323 ER -