Missing year: 1969-1970
Missing month: 1948/1-4, 1949/10-12, 1987/10-12, 1988/7-12
Missing number: 1948/1-138, 1948/143, 1948/157, 1948/250, 1948/257, 1948/264, 1949/1, 1949/198, 1949/240, 1950/80, 1950/115-116, 1950/154, 1951/143, 1951/167, 1951/205, 1951/234, 1968/84, 1968/191, 1968/204, 1968/232-234, 1968/236-239, 1968/241, 1968/254, 1968/342, 1971/31, 1971/47, 1971/58, 1971/84, 1971/90, 1971/132, 1971/144, 1971/156, 1971/180, 1971/198, 1971/275, 1971/298, 1971/300, 1972/89, 1972/117, 1972/198, 1972/207, 1972/216, 1972/249, 1972/255, 1972/291, 1973/106, 1973/124, 1973/206, 1973/250, 1974/60, 1974/223, 1975/25, 1976/8, 1976/31, 1976/115, 1976/141, 1976/157, 1976/181, 1976/186, 1976/193, 1976/220, 1976/225, 1976/235, 1976/309, 1977/4, 1977/104, 1977/163-165, 1977/171, 1977/207-208, 1977/278, 1978/11, 1978/25, 1978/30, 1978/53, 1978/58, 1978/60, 1978/74, 1978/82, 1978/85, 1979/2, 1979/4, 1979/42, 1979/74, 1979/79, 1979/116, 1979/148, 1979/188, 1979/240, 1979/284, 1979/292, 1979/297, 1979/302, 1980/15, 1980/52, 1980/61, 1980/68, 1980/110, 1980/189, 1980/193, 1980/269, 1980/273, 1980/293, 1981/81, 1981/172, 1981/201, 1981/264, 1981/294, 1981/296, 1982/31, 1982/79, 1982/310-399, 1983/31, 1983/100-102, 1983/105-106, 1983/122, 1984/37, 1984/213, 1984/240, 1984/254, 1984/257, 1984/262, 1985/169, 1985/213, 1985/231, 1986/76, 1986/290, 1986/301, 1987/109, 1988/76, 1988/142
