@incollection{Beldean-Galea11,
author = {Iovanca Haiduc and Mihail Simion Beldean-Galea},
title = {Variation of Greenhouse Gases in Urban Areas-Case Study: CO2, CO and CH4 in Three Romanian Cities},
booktitle = {Air Quality},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Dragana Popovi?},
chapter = {15},
doi = {10.5772/17985},
url = {https://doi.org/10.5772/17985}
}