1
Birkhoff, G.
1984
“...MNEB - Iterative methods, discrete approximations, successive approximations...”1984
2
Bohl, Erich
1981
“...MNEB - Iterative methods, discrete approximations, successive approximations...”1981
3
Aubin, Jean-Pierre
1972
“...MNEB - Iterative methods, discrete approximations, successive approximations...”1972