@incollection{Kempner08,
author = {Yulia Kempner and Vadim E. Levit and Ilya Muchnik},
title = {Quasi-Concave Functions and Greedy Algorithms},
booktitle = {Greedy Algorithms},
publisher = {IntechOpen},
address = {Rijeka},
year = {2008},
editor = {Witold Bednorz},
chapter = {25},
doi = {10.5772/6340},
url = {https://doi.org/10.5772/6340}
}