| This article is substantially duplicated by a piece in an external publication. Please do not flag this article as a copyright violation of the following sources: - Surhone, L. M.; et al. (2010), Oberon (opera): Opera, Carl Maria von Weber, James Robinson Planche, Betascript Publishing
- Miller, F. P.; et al. (2010), Comic opera: Opera buffa, opera seria, opéra bouffon, operetta, Jacques Offenbach, Singspiel, zarzuela, ballad opera, Savoy opera, opéra comique, musical theatre, opera, Gilbert and Sullivan, Alphascript Publishing
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