@article{IVM_2001_10_a3,
     author = {M. M. Dragilev},
     title = {On {K\"othe} spaces with pre-equivalent unconditional basis},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {29--35},
     publisher = {mathdoc},
     number = {10},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2001_10_a3/}
}