On the Foundations of Geometry and Formal Theories of Arithmetic

@book{frege-foundations1971,
   address = {New Haven, CT, USA},
   apice = {FregeFoundations1971},
   author = {Gottlob Frege},
   isbn10 = {0300013930},
   isbn13 = {9780300013931},
   note = {Translated by Eike-Henner W. Kluge},
   publisher = {Yale University Press},
   title = {On the Foundations of Geometry and Formal Theories of Arithmetic},
   url = {https://philpapers.org/rec/FREOTF-4},
   year = 1971
}