Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Rolf Färe, Sung-ko Li. Inner and outer approximations of technology: a data envelopment analysis approach. European Journal of Operational Research, 105(3):622-625, 1998. [doi]
Abstract is missing.