Input (grade 10): In 1972 the district was merged with GÃ 1\/4 nzburg (district) and the urban district GÃ 1\/4 nzburg to GÃ 1\/4 nzburg district in todays borders.
Output (grade 10): In 1972 the district became together with GÃ 1\/4 nzburg (district) and the urban district GÃ 1\/4 nzburg, the GÃ 1\/4 nzburg district in todays form.