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See Schönbach 9) AH. Löbau - A See notation means the entry is dependent on another entry. In this case, Oberschönbach is dependent on Schönbach 9) AH. Löbau, which should be consulted for additional information.
Vgl Oberschömbach - A Vgl (Vergleiche) notation lists places with similar spellings that you may want to compare. In this case, you may want to try searching for Oberschömbach.