details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713453505 Observations of gamma-ray bursts and a supernovae search at the robotic telescope MASTER V. M. Lipunov ab; V. G. Kornilov ab; A. V. Krylov a; D. A. Kuvshinov b; E. S. Gorbovskoy b; N. V. Tyurina a; A. A. Belinsky a; G. V. Borisov a ... Stellar magnitude >17.8 18.6 ± 0.3 19.4 ± 0.3 Exposure time (s) 45 15 в 30 15 в 30 Comments Upper limit 82 V. M. Lipunov et al. ...