Measured and Calculated Energy Saving on Ventilation of a Residential Building equipped with Ground-Air Heat ExchangerSilviana Brata, Cristina Tanasa, Valeriu Stoian, Dan Stoian, Daniel Dan, Cristian Pacurar and Sorin BrataE3S Web Conf., 111 (2019) 06074DOI: https://doi.org/10.1051/e3sconf/201911106074