@article{MZM_2020_107_3_a3,
     author = {I. V. Bondareva and M. Yu. Luchin and V. Kh. Salikhov},
     title = {On the {Irrationality} {Measure} of $\ln7$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {366--375},
     publisher = {mathdoc},
     volume = {107},
     number = {3},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_107_3_a3/}
}