H. Littmann

[Determination of the real size of an object on the fundus of the living eye].

H. Littmann, 1982, Klinische Monatsblatter fur Augenheilkunde.

A New Slitlamp Apparatus

H. Littmann, 1950 .

[Determining the true size of an object on the fundus of the living eye].

H. Littmann, 1988, Klinische Monatsblatter fur Augenheilkunde.