Geier, Roman, Angelmaier, Volkhard, Graubner, Carl-alexander, Kohoutek, Jaroslav (1) Song, Yu (california Institute Of Technology, Usa), Gao, Wei, Zhang, Haixia (1) Thompson, A. Richard (national Radio Astronomy Observatory), Moran, James M. (harvard-smithsonian Center For Astrophysics), Swenson, George W. (1) Weber, Sandra (1) Uchiyama, Seiichi (university Of Tokyo (1)