Lee, C. Y. (1961). "An Algorithm for Path Connections and Its Applications". IRE Transactions on Electronic Computers (3): 346–365. doi:10.1109/TEC.1961.5219222. S2CID40700386.
Lee, C. Y. (1961). "An Algorithm for Path Connections and Its Applications". IRE Transactions on Electronic Computers (3): 346–365. doi:10.1109/TEC.1961.5219222. S2CID40700386.