@phdthesis{74489, author = {Mike Fisher and H. Auvinen}, title = {Long window 4D-Var}, year = {2012}, journal = {Seminar on Data assimilation for atmosphere and ocean, 6-9 September 2011}, pages = {189-202}, month = {2012}, publisher = {ECMWF}, address = {Shinfield Park, Reading}, language = {eng}, }