Economist, historian, and Marxist revolutionary.
Prominent intellectual at the Institute for Social Research, better known as the Frankfurt School.
Grossman was well known for his book, The Law of Accumulation and Breakdown of the Capitalist System, which is a study in Marxian crisis theory.
Henryk Grossman - Wikipedia
"Henryk Grossman" - Marxists.org
"Henryk Grossman, 1881-1950." - Hetwebsite.net
"Henryk Grossman Works. Volume 2 Political Writings - Historical Materialism" - Blackwells.co.uk