The following publications are possibly variants of this publication:
- Automatic input of Logic Diagrams by Recognizing Loop-Symbols and Rectilinear ConnectionsSoo-Hyung Kim, Jin Hyung Kim. In Horst Bunke, Patrick S. P. Wang, Henry S. Baird, editors, Document Image Analysis. Volume 16 of Series in Machine Perception and Artificial Intelligence, pages 117-133, World Scientific, 1994. [doi]
- Recognition of logic diagrams by identifying loops and rectilinear polylinesS. H. Kim, J. W. Suh, J. H. Kim. icdar 1993: 349-352 [doi]