Missing number: 1951/1, 1951/6-7, 1951/52-53, 1951/79, 1951/92, 1951/127, 1951/137, 1951/144, 1951/165, 1951/308, 1951/311, 1953/338, 1954/13, 1954/246-247, 1955/48, 1955/82, 1955/170, 1955/254, 1956/3, 1956/6, 1956/21, 1956/27, 1956/60, 1961/1, 1963/4, 1964/174, 1967/148-149, 1967/216, 1967/299, 1974/1, 1974/336, 1975/98, 1980/161, 1981/193-194, 1982/91, 1985/81, 1986/145, 1988/272