GRB070223: MASTER-VWF-Kislovodsk observations. Lipunov, V. ; Kornilov, V. ; Shatskiy, N. ; Gorbovskoy, E. ; Belinski, A. ; Kuvshinov, D. ; Tyurina, N. ; Gritsyk, P. ; Tlatov, A. ; Golubov, I. Abstract Publication: GRB Coordinates Network Pub Date: 2007 Bibcode: 2007GCN..6131....1L