Cita APA (7th ed.)

Ringger, E. Document Recognition and Retrieval XXII. SPIE Digital Library.

Cita Chicago (17th ed.)

Ringger, Eric. Document Recognition and Retrieval XXII. SPIE Digital Library.

Cita MLA (8th ed.)

Ringger, Eric. Document Recognition and Retrieval XXII. SPIE Digital Library.

Atenció: Aquestes cites poden no estar 100% correctes.