@article{IM2_2015_79_1_a0,
     author = {V. A. Androsenko},
     title = {Irrationality measure of the number $\frac{\pi}{\sqrt{3}}$},
     journal = {Izvestiya. Mathematics },
     pages = {1--17},
     publisher = {mathdoc},
     volume = {79},
     number = {1},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2015_79_1_a0/}
}