Methods of mathematical physics; v.2 : Particalequations by R.Courant
Courant, R.
Methods of mathematical physics; v.2 : Particalequations by R.Courant by R. Courant D. Hilbert. - Interscience 1962
530.15 / N62
Methods of mathematical physics; v.2 : Particalequations by R.Courant by R. Courant D. Hilbert. - Interscience 1962
530.15 / N62