@article{10_21136_AM_1974_103508,
     author = {Trlifaj, Ladislav},
     title = {Asymptotic ratios of {Bessel} functions of purely imaginary argument},
     journal = {Applications of Mathematics},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1974},
     doi = {10.21136/AM.1974.103508},
     mrnumber = {0340669},
     zbl = {0278.33015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1974.103508/}
}