Classificatie der tweedegraadskrommen en -oppervlakken in de niet-Euclidische meetkunde.
Material type:
TextPublication details: Utrecht, Drukkerij Fa. Schotanus & Jens, 1942.Description: 91, [3] p. diagrs. 25 cmSubject(s): DDC classification: - 513.81
- QA685 .B88
Proefschrift--Utrecht.
"Stellingen": [2] p. inserted.
"Summary": 1 p. at end.
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