@phdthesis{73873, author = {H. Böttger}, title = {Forecasts of blocking and cyclone developments - operational results during winter 1986/1987}, year = {1987}, journal = {Seminar on the Nature and Prediction of Extra Tropical Weather Systems. 7-11 September 1987}, volume = {II}, pages = {317-328}, month = {1987}, publisher = {ECMWF}, address = {Shinfield Park, Reading}, language = {eng}, }