1919 Dandy . , . Naffziger (1924) , . , , . , Spatz Stroescu (1934).
.
1937 Davidoff , .
Liliequist (1959) . Key Retzius
. , (Epstein, 1965; Wilson, 1972; Lang 1973), . 1974 . - , : (1967), Alien and Low (1975), Suzuki . (1977, 1979), - . (1978), Julow . (1979). (Clara 1953 , 1958; 1974), , .
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Schachenmayr (1978) , , , . ( ). ,
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