@article{KUKTF_1992_a7,
     author = {O. E. Tikhonov},
     title = {Spectral theory for spaces with basis norm},
     journal = {Konstruktivnaya Teoriya Funktsii i Funktsional'nyi Analiz},
     pages = {76--91},
     publisher = {mathdoc},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKTF_1992_a7/}
}