Shi J, Dong J, Wang ZD. Theory of dc currents in SIS junctions with anisotropic pairing symmetry. Superlattices and Microstructures. 1999;(5):1067-1074.

Shi J. Droplet state in an interacting two-dimensional electron system. Physical Review B - Condensed Matter and Materials Physics. 1999;(20):R13950-R13953.