The Good wolf,

Mode of access: Internet.

Rising Wolf, the white Blackfoot; Hugh Monroe's story of his first year on the plains,

Mode of access: Internet.

Friedrich August Wolf's encyclopädie der philologie. nach dessen vorlesungen im winterhalbjahre 1798-1799,

Mode of access: Internet.

Goethes Briefe an Friederich August Wolf.

Mode of access: Internet.

Wolf predation in the north country.

Mode of access: Internet.

The life of Joseph Wolf, animal painter /

"A catalogue of some of the principal works illustrated entirely or partly by Joseph Wolf": p. [291]-328.

Fuchs, Schakal und Wolf : vergleichende Morphologie des Schadels.

Thesis (doctoral)--Universitat Bern.