Mathematics
Mathematics
HUSSERL, EDMUND.
Logische Untersuchungen [Misch..Halle, Niemeyer, 1922 (Vol.1 and vol. 2, I) - 1921 (Vol 2, II).
GENOCCHI, ANGELO (recte GIUSEPPE PEANO).
Calcolo differenziale e princi..Torino, Fratelli Bocca, 1884.
EULER, LEONHARD. - FUNDAMENTAL PAPERS IN ACOUSTICS.
De la Propagation du Son (On t..(Berlin, Haude et Spener, 1766).
COURANT, R. und D. HILBERT.
Methoden der Mathematischen Ph..Berlin, Julius Springer, 1931-37. (Reprinted 1943).