Pichugov, S. A., Пичугов, С. А., & Пичугов, С. А. (1996). On the existence of a measurable function with given values of the best approximations in $L_0$. Institute of Mathematics, NAS of Ukraine.
Chicago Style (17th ed.) CitationPichugov, S. A., С. А Пичугов, and С. А Пичугов. On the Existence of a Measurable Function with Given Values of the Best Approximations in $L_0$. Institute of Mathematics, NAS of Ukraine, 1996.
MLA (8th ed.) CitationPichugov, S. A., et al. On the Existence of a Measurable Function with Given Values of the Best Approximations in $L_0$. Institute of Mathematics, NAS of Ukraine, 1996.
Warning: These citations may not always be 100% accurate.