@article{10_4064_sm8522_8_2016,
     author = {Vyacheslav V. Chistyakov and Svetlana A. Chistyakova},
     title = {The joint modulus of variation of metric space valued functions and pointwise selection principles},
     journal = {Studia Mathematica},
     pages = {37--57},
     publisher = {mathdoc},
     volume = {238},
     number = {1},
     year = {2017},
     doi = {10.4064/sm8522-8-2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm8522-8-2016/}
}