好心人帮我找到了另外一篇文献，我还有两篇没找到。希望哪位大侠再帮帮忙啊~

1.Comparative statics of a residential economy with several classes.
     ——J Hartwick, U Schweizer, P Varaiya - Journal of Economic Theory, 1976

链接 http://www.sciencedirect.com/science/article/B6WJ3-4CYGFRT-1KV/2/a0681f7fc0d8310880a1203021ea5034

2.General equilibrium and location theory
                              ——U Schweizer, P Varaiya, J Hartwick - Journal of Urban Economics, 1976
链接 http://www.sciencedirect.com/science/article/B6WMG-4DBJ9MG-6F/2/05c5994ba6300fbb0585cffdb294f474