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Cameron, Christopher (July 11, 2013). "Apthorp – Penthouse Additions". The Real Deal. Archived from the original on March 16, 2023. Retrieved March 16, 2023.
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Marsh, Katherine (May 12, 2002). "Palace Revolt". The New York Times. ISSN0362-4331. Archived from the original on March 18, 2023. Retrieved March 16, 2023.
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