@article {SomPud:990224, title = {Adaptive floating search methods in feature selection}, journal = {Pattern Recognition Letters}, volume = {20}, number = {11/13}, year = {1999}, pages = {1157-1163}, author = {Somol, P. and Pudil, P. and Novovi{\v c}ov{\'a}, J. and Pacl{\'\i}k, P.} }