TY - JOUR
AU - D. van Blerkom
BT - The Astrophysical Journal
DA - Jan-08-1978
DO - 10.1086/156316
PY - 1978
EP - 835
T2 - The Astrophysical Journal
TI - Indications of circumstellar ring systems from SiO and H2O maser lines
UR - http://adsabs.harvard.edu/full/1978ApJ...223..835V
VL - 223
SN - 0004-637X
ER -