@article{10_4064_fm_139_1_9_15, author = {D. Fremlin}, title = {On the average of inner and outer measures}, journal = {Fundamenta Mathematicae}, pages = {9--15}, publisher = {mathdoc}, volume = {139}, number = {1}, year = {1991}, doi = {10.4064/fm-139-1-9-15}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-139-1-9-15/} }