[1214] Sokoloff, Wratsch, 1896.
[1215] Rawnitzky, Derm. Zeitschr., v, p. 704.
[1216] Cholodowsky, Wratsch, 1896.
[1217] Stelwagon, Journ. Cut. Dis., xxii, 8.
[1218] Ehrmann, Wien. derm. Ges., November 17, 1897.
[1219] v. Harlingen, Amer. Journ. of Med. Sci., 1902.
[1220] Lenglet and Delaunay, Annal. de Derm. et de Syph., 1904.
[1221] Kengsep, Derm. Centralbl., 1906, vii.
[1222] Hamburger, Journ. of Cut. Dis., 1904.
[1223] v. Harlingen, loc. cit.