Tsimmerman Lazar-Khariys Borisovich (16.02.1937, Riga) — professor, habilitated Doctor of Engineering, Doctor of Technical Sciences. He completed school with a gold medal, but did not receive it as the son of a repressed person. In 1959 he completed the Kuibyshev Moscow Engineering and Construction Institute. He began his scholarly activity in Chelyabinsk, working at the Ural Branch of the Academy of Construction and Architecture. From 1979 he has been living in Riga. He taught at the Riga Polytechnic Institute and worked at the LatNII of Construction. He is the author of 232 scholarly works, 163 inventions, and 8 monographs. His principal works concern the thermodynamics of sorption, structure formation, mass transfer, open systems, and cosmogony.

Works: Thermodynamic and Transfer Properties of Capillary-Porous Bodies. Chelyabinsk, 1971; Thermodynamics of the Wet State and Behavior of Building Materials. Riga, 1985; Sorption, Structure Formation, Mass Transfer (Thermodynamics of the Wet Body). Moscow, 2006; Visums Visumā. Rīga, 2008; The Universe Before and After the Big Bang (A Brief History of Matter, Space, and Time). Moscow, 2009.

I. Rochko