@article{MZM_1977_22_4_a5,
     author = {A. N. Degtev},
     title = {A~family of maximal subalgebras of {R.~Robinson's} algebra},
     journal = {Matemati\v{c}eskie zametki},
     pages = {511--516},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1977_22_4_a5/}
}