I. Protasov has written:
'Combinatorics of numbers' -- subject(s): Combinatorial analysis, Ultrafilters (Mathematics)
Nikolaiy Protasov was born in 1798.
Igor Protasov was born in 1966.
Nikolaiy Protasov died in 1855.
Oleh Protasov was born on 1964-02-04.
The top scorer of the Soviet Supreme League in 1985 was Oleg Protasov.
The top scorer of the Soviet Supreme League in 1987 was Oleg Protasov.
Forename Author Surname has written: 'Title'
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