@article{article78735487,
title   = {Pipe–pipe thermal interaction in a geothermal energy pile},
author = {Sani, Abubakar Kawuwa and Singh, Rao Martand and Tsuha, Cristina de Hollanda Cavalcanti},
year = {2019},
doi = {10.1016/j.geothermics.2019.05.004},
publisher = {Elsevier},
journal   = {Geothermics}
}