Igor Irodov died in 2002.
I E Irodov's problems in general physics is the book referred to as Irodov in India among students who sincerely prepare for one of the toughest exam in the world - IIT JEE.
Igor Doronin died in 1950.
Igor Polyakov died in 2008.
Igor Savitsky died in 1984.
Igor of Kiev died in 945.
Igor Voronchikhin died in 2009.
Igor Buldakov died in 1979.
Igor Delijanić died in 2007.
Igor Demidov died in 1946.
Igor Bunich died in 2000.
Igor Kuljerić died in 2006.
Igor Zakharevich died in 2008.