@string{dtv     = {Deutscher Taschenbuch-Verlag}}

@mvbook{nietzsche:ksa,
    author       = {Nietzsche, Friedrich},
    title        = {S{\"a}mtliche Werke},
    date         = 1988,
    editor       = {Colli, Giorgio and Montinari, Mazzino},
    edition      = 2,
    volumes      = 15,
    publisher    = dtv # { and Walter de Gruyter},
    location     = {M{\"u}nchen and Berlin and New York},
    langid       = {german},
    sorttitle    = {Werke-00-000},
    indexsorttitle= {Samtliche Werke},
    subtitle     = {Kritische Studienausgabe},
    annotation   = {The critical edition of Nietzsche's works. This is a
                    \texttt{mvbook} entry referring to a 15-volume work as a
                    whole. Note the \texttt{volumes} field and the format of the
                    \texttt{publisher} and \texttt{location} fields in the
                    database file. Also note the \texttt{sorttitle} and
                    field which is used to fine-tune the
                    sorting order of the bibliography. We want this item listed
                    first in the bibliography},
}