@article{CMUC_1981_22_3_a15,
     author = {Tka\v{c}enko, Michael G.},
     title = {Some results on inverse spectra. {I}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {621--633},
     year = {1981},
     volume = {22},
     number = {3},
     mrnumber = {633589},
     zbl = {0478.54005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1981_22_3_a15/}
}