A Massive ''Core'' Associated with the UC HII Region G31. 41+0. 31
Proceedings article published in 1996 by
R. Cesaroni 
,
L. Olmi,
C.~M M. Walmsley,
E. Churchwell,
P. Hofner
,
L. Olmi,
C.~M M. Walmsley,
E. Churchwell,
P. Hofner
