@Article{npg-14-73-2007,
AUTHOR = {Smith, K. W. and Aretxabaleta, A. L.},
TITLE = {Expectation-maximization analysis of spatial time series},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {14},
YEAR = {2007},
NUMBER = {1},
PAGES = {73--77},
URL = {http://www.nonlin-processes-geophys.net/14/73/2007/},
ISSN = {1023-5809}
}