@article{MZM_1999_66_6_a0,
     author = {P. V. Andreev},
     title = {On definable predicates of standardness in internal set theory},
     journal = {Matemati\v{c}eskie zametki},
     pages = {803--809},
     year = {1999},
     volume = {66},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1999_66_6_a0/}
}