APA Style
Heinzmann, G., Wolters, G.
(2021).
Paul Lorenzen -- Mathematician and Logician
(
1)
.
Cham:
Springer Cham.
MLA Style
Heinzmann, Gerhard., Wolters, Gereon.
"Paul Lorenzen -- Mathematician and Logician".
1
Cham:
Springer Cham,
2021.
Text.