Studies.

v.1-3; v.1 (1912); v.2; v.2 (1913); v.3 (1914); v.4 (1915); v.5 (1916); v.6 (1917); v.7-8; v.7 (1918); v.8 (1919); v.9; v.9 (1920); v.10-11; v.10 (1921); v.11 (1922); v.12 (1923); v.13; v.13 (1924); v.14 (1925); v.15 (1926); v.16 (1927); v.17; v.17 (1928); v.17 no.67-68 1928; v.18-19; v.18 (1929); v.18 no.69-70 1929; v.18 no.71-72 1929; v.19 (1930); v.20-21; v.20; v.20 (1931); v.21 (1932); v.22; v.22 (1933); v.23 (1934); v.24 (1935); v.25 1936; v.26 (1937, no.102-104; lacks no.101); v.27 (1938); v.28 (1939); v.29 (1940); v.30 (1941); v.31 (1942); v.32-33; v.32 (1943); v.33 (1944); v.34 (1945); v.35 (1946); v.36-39; v.36 (1947); v.37 (1948); v.38 (1949); v.39 (1950); v.40-41 (1951-52); v.42 (1953); v.43 (1954); v.44 (1955); v.45-46; v.45 (1956); v.46 (1957); v.47 (1958); v.48 1959; v.50 1961; v.51 no.201-204 1962; v.53 1964; no.214-216 1965; v.54 1965; no.217-220 1966; no.221-224 1967; no.225-228 1968; v.57 1968; no.229-232 1969; v.58 1969; no.233-236 1970; v.59 1970; no.237-240 1971; v.60 1971; no.241-244 1972; v.61 1972; no.245-248 1973; v.62 1973; no.249-252 1974; v.63 1974; v.64 1975; no.253-260 1975-1976; v.64-65 1975-1976; v.65-66 1976-77; no.261-264 1977; v.66-67 1977-1978; no.265-268 1978; v.67-68 1978-79; no.269-272 1979; no.273-276 1980; v.69-70 1980-81; no.277-280 1981; v.70-71 1981-1982; no.281-284 1982; v.71-72 1982-83; v.72 1983; no.289-292 1984; v.73-74 1984-85; no.293-296 1985; no.297-300 1986; v.75 1986; no.301-304 1987; v.76 1987; no.305-308 1988; no.309-312 1989; v.78 1989; no.313-316 1990; v.79:313-316 (1990); no.317-320 1991; v.80:318-320 (1991); no.321-324 1992; v.81 (1992); no.325-328 1993; v.82 (1993); no.329-332 1994; v.83 (1994); no.333-336 1995; v.84 (1995); no.337-340 1996; v.85 (1996); no.341-344 1997; v.86 (1997); no.345-348 1998; no.349-352 1999; no.353-356 2000; no.357-360 2001; no.361-364 2002; no.365-368 2003; v.92 no.365-368 2003; v.93 no.369-372 2004; v.95 no.377-380 2006; v.96 no.381-384 2007; v.97 no.385-388 2008