@article{MZM_2010_88_4_a9,
     author = {V. Kh. Salikhov},
     title = {On the {Measure} of {Irrationality} of the {Number~}$\pi$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {583--593},
     publisher = {mathdoc},
     volume = {88},
     number = {4},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2010_88_4_a9/}
}