id: 04120161
dt: j
an: 04120161
au: Dëgtev, A.N.
ti: A problem of Odifreddi.
so: Sib. Math. J. 30, No.1, 144-146 (1989); translation from Sib. Mat. Zh. 30,
    No.1(173), 185-187 (1989).
py: 1989
pu: Pleiades Publishing, Tortola, British Virgin Islands; Nauka/Interperiodica,
    Moscow; Springer, New York
la: EN
cc: 
ut: hyperhypersimple set; simple nonhypersimple set
ci: Zbl 0672.03028
li: doi:10.1007/BF01054230
ab: See the review in Zbl 0672.03028.
rv: