@article{10_4064_cm_64_1_93_101,
     author = {Piotr Haj{\l}asz},
     title = {Change of variables formula under minimal assumptions},
     journal = {Colloquium Mathematicum},
     pages = {93--101},
     publisher = {mathdoc},
     volume = {64},
     number = {1},
     year = {1993},
     doi = {10.4064/cm-64-1-93-101},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-64-1-93-101/}
}