Simplify the following text for a Grade 7 native English-speaking person.
Original: The term `` measure polytope '' is also used , notably in the work of H.S.M. Coxeter ( originally from Elte , 1912 ) , but it has now been superseded .
Simplified: The term `` measure polytope '' is also used , notably in the work of H.S.M. Coxeter , but it has now been superseded .