Clemens Raab,
"Comments on Risch?s On the Integration of Elementary Functions which are Built Up Using Algebraic Operations"
, in C.G. Raab, M.F. Singer: Integration in Finite Terms: Fundamental Sources, Springer, Seite(n) 221-233, 6-2022
Original Titel:
Comments on Risch?s On the Integration of Elementary Functions which are Built Up Using Algebraic Operations