LutheW.Schreib- und Griffdruckuntersuchungen bei einfachen Hin- und Herbewegungen. Psychol. Forsch., 1951, 23, 464–494.
15.
LutheW.An apparatus for the analytical study of handwriting movements. Canad. J. Psychol., 1953, 7, 133–139.
16.
LutheW.Untersuchungen ueber den Griffdruck. Graphologia III, Beth. Schweiz. Z. Psychol. Anwend., 1953, 20, 144–160.
17.
MeyerM.Ueber die Beeinflussung der Schrift durch den Alkohol. Psychol. Arbeiten, 1901, 3, 535–584.
18.
PascalG. R.Handwriting pressure: Its measurement and significance. Charact. & Pers., 1943, 11, 235–254.
19.
PophalR.Zur Psychophysiologie der Spannungserscheinungen in der Handschrift. (2nd Ed.) Rudolstadt: Greifen Verlag, 1949.
20.
RabinA.BlairH.The effects of alcohol on handwriting. J. clin. Psychol., 1953, 9, 284–287.
21.
RomanK. G. Graphodyn. Z. angew. Psychol., 1931, 11, 23–33.
22.
RomanK. G.Studies on the variability of handwriting: The development of writing speed and point pressure in school children. J. genet. Psychol., 1936, 49, 139–160.
23.
RomanK. G.Tension and release: Studies of handwriting with the use of the graphodyne. In WolffW. (Ed.), Personality: Symposia on topical issues. No. 2. New York: Grune & Stratton, 1950. Pp. 51–61.