Missing year: 1969-1970
Missing month: 1976/1-2
Missing number: 1968/1-2, 1968/8, 1968/70, 1968/130, 1968/199-205, 1968/220, 1968/228, 1968/278-279, 1968/284, 1971/10, 1971/18, 1971/42-43, 1971/100, 1971/127, 1971/132, 1971/198, 1971/205, 1971/214, 1972/18, 1973/7, 1973/23, 1973/29, 1973/175, 1973/189, 1973/209, 1973/223, 1973/301, 1974/37, 1974/169, 1974/214, 1974/249, 1975/168, 1975/228, 1975/286, 1976/1-68, 1976/107, 1976/157, 1976/235, 1976/246, 1976/258, 1976/262, 1976/294, 1976/308, 1977/54, 1977/122, 1977/297, 1978/32, 1978/54, 1978/211, 1978/227, 1978/284