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Multi-attribute investment decisions : a study of R & D project selection
Schwartz, Sandra L., (1977)
Chozrasčet naučno-proizvodstvennych ob-edineni͏̈jach
Lipčanskaja, Ljudmila Pavlovna, (1982)
Accounting and financial control for R & D expenditures
Lin, W. Thomas, (1980)
How valuable is patent protection? : estimates by technology field using patent renewal data
Schankerman, Mark, (1991)
How valuable is patent protection? : Estimates by technology field
Schankerman, Mark, (1998)