@article{MV_1964_16_4_a4,
     author = {A. K. Mookhopadhyaya},
     title = {On sets of positive measure under certain transformations},
     journal = {Matemati\v{c}ki vesnik},
     pages = {303 },
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1964},
     url = {http://geodesic.mathdoc.fr/item/MV_1964_16_4_a4/}
}