@article{MAN_1975__213_162665,
     author = {Don Zagier},
     title = {A  {Kronecker} {Limit} {Formula} for {Real} {Quadratic} {Fields.}},
     journal = {Mathematische Annalen},
     pages = {153--184},
     publisher = {mathdoc},
     volume = {213},
     year = {1975},
     zbl = {0283.12004},
     url = {http://geodesic.mathdoc.fr/item/MAN_1975__213_162665/}
}