G. Senger

EXCITATIONS OF THE SURFACE OF LIQUID 4HE

J. W. Clark, K. Gernoth, M. Ristig, 1993 .

Correlated density matrix theory of normal quantum fluids

J. W. Clark, C. Campbell, M. Ristig, 1992 .

Variational density-matrix theory of liquid /sup 4/He at nonzero temperatures

K. E. Kürten, C. Campbell, M. Ristig, 1984 .

Correlated Density Matrix Theory of Boson Superfluids

J. W. Clark, M. Serhan, M. Ristig, 1995 .