Gaya APA
Behrndt, J. et al (2020).
Boundary value problems, weyl functions, and differential operators .
Cham, Switzerland:
Birkhäuser.
Gaya MLA
Behrndt, Jussi. et al.
"Boundary value problems, weyl functions, and differential operators".
Cham, Switzerland:
Birkhäuser,
2020.
Ebook.