DEA-R: ratio-based comparative efficiency model, its mathematical relation to DEA and its use in applications.Published in:Journal of Productivity Analysis, 2007, v. 28, n. 1/2, p. 33, doi. 10.1007/s11123-007-0050-xBy:Despić, Ozren;Despić, Mladen;Paradi, Joseph C.Publication type:Article