@Article{npg-12-515-2005,
AUTHOR = {Terwisscha van Scheltinga, A. D. and Dijkstra, H. A.},
TITLE = {Nonlinear data-assimilation using implicit models},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {12},
YEAR = {2005},
NUMBER = {4},
PAGES = {515--525},
URL = {http://www.nonlin-processes-geophys.net/12/515/2005/},
DOI = {10.5194/npg-12-515-2005}
}