@misc{indiciae7353b4ab01f4, title = {Application of reference-free natural background–oriented schlieren photography for visualizing leakage sites in building walls}, author = {Boudreaux, Philip R. and Venkatakrishnan, Singanallur and Iffa, Emishaw and Hun, Diana E.}, year = {2022}, doi = {10.1016/j.buildenv.2022.109529}, url = {https://www.osti.gov/biblio/1885342}, note = {Source identifier: 1885342} }