Technical paper /

no.6 1933; 1-11 1932-1934; no.15 1935; 12-23 1934-1936; 24-35 1936-1937; 36-55 1937-1940; 56-74 1940-1942; 75-96 1942-1944; v.1-3(1932); v.79-80,97-99 1942,1944-45; 97-125 1944-1947; 126-138 1947-1948; 139-145 1948-1949; no.5; no.11; no.16; no.18; no.32; no.33; no.35; no.36; no.40; no.41; no.43; no.44; no.46; no.47; no.53; no.56; no.59; no.63; no.68; no.70; no.72; no.73; no.74; no.86; no.93; no.98; no.99; no.100-101; no.120; no.121; no.123; no.124; no.125; no.127; no.128; no.129; no.131; no.132; no.133; no.134; no.135; no.136; no.137; no.138; no.139; no.140; no.142; no.144; no.147; no.148; no.150; no.151; no.156; no.157; no.158; no.161; no.180; no.181; no.182; no.184; no.186; no.187