J. Stern

发表

H. Gravelle, G. Hutchinson, J. Stern, 1981, The Lancet.

S. Nickell, W. Narendranathan, J. Stern, 1989 .

Stephen Nickell, S. Nickell, W. Narendranathan, 1985 .

H. Gravelle, G. Hutchinson, J. Stern, 1981, The Lancet.