New detections of H2O maser sources on the 13.7 m radio telescope of Purple Mountain ObservatoryF. Han, R. Q. Mao, J. Lu, Y. F. Wu, J. Sun, J. S. Wang, C. C. Pei, Y. Fan, G. S. Tang and H. R. JiAstron. Astrophys. Suppl. Ser., 127 2 (1998) 181-184DOI: https://doi.org/10.1051/aas:1998342