Gaya APA

kruger, B, H, A, J, J. (). Optimal directions for directional distance functions: an exploration of potential reductions of greenhouse gases . [s.i.]: .

Gaya MLA

kruger, Benjamin, Hampf, And, Jens, J.. "Optimal directions for directional distance functions: an exploration of potential reductions of greenhouse gases". [s.i.]: , . Text.