"Nikolaevich" . "Nicolaj Nikolaevič" . "Nikolaus" . "Поппе" . "Nikolaĭ Nikolaevich Poppe"@fr-CH . "Poppe" . "Nicolaj Nikolaevič Poppe" . "Nicolaj Nikolaevič Poppe" . "Nikolaĭ" . "Nicholas Poppe" . "Николай Николаевич Поппе" . . . "Nikolaevič" . . "Nikolaus Poppe" . "Николай Николаевич" . "Nicholas" . "Nicolaj" . . .