@article{10_21136_AM_1965_102983,
     author = {Babu\v{s}ka, Ivo},
     title = {\"Uber optimale {Formeln} zur numerischen {Berechnung} linearer {Funktionale}},
     journal = {Applications of Mathematics},
     pages = {441--443},
     year = {1965},
     volume = {10},
     number = {5},
     doi = {10.21136/AM.1965.102983},
     mrnumber = {0207203},
     zbl = {0221.65034},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1965.102983/}
}