@conference {KokAleGyi96-PAP96, title = {Classifying {ECG} Waveforms in {P}rolog}, year = {1996}, pages = {173-199}, publisher = {Practical Application Company Limited}, organization = {Practical Application Company Limited}, author = {G. K{\'o}kai and Z. Alexin and Tibor Gyim{\'o}thy}, editor = {Reintjes, P.} }