by Chow, S.N., Lu, K.N.
Published in Journal of Differential Equations (20.03.1995)

by Lu, K.N.
Published in Journal of Differential Equations (01.11.1994)

by Chow, S.N., Lu, K.N., Malletparet, J.
Published in Journal of Differential Equations (01.04.1994)

by Fan, Z.R, Lu, K.N
Published in Journal of North-Eastern Forestry Institute (1982)

by Lu, K.N, Jin, Z.Y, Li, Y.C, Xia, X.X, Fan, Z.Y
Published in Journal of North-Eastern Forestry Institute (1983)