 Traces of Constructivism can also be found in some Socialist Realist works, for instance in the Futurist elevations of Iofan's ultra-Stalinist 1937 Paris Pavilion, which had Suprematist interiors by Nikolai Suetin.Due in part to its political commitment—and its replacement by Stalinist architecture—the mechanistic, dynamic forms of Constructivism were not part of the calm Platonism of the International Style as it was defined by Philip Johnson and Henry-Russell Hitchcock.Their book included only one building from the USSR, an electrical laboratory by a government team led by Nikolaev.