This book, "Vorlesungen �ber Die Theorie Der Elliptischen Modulfunctionen: Bd. Fortbildung Und Anwendung Der Theorie (German Edition)", by Félix Klein, is a replication. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.