1. Studies on improved leak detection methods for gas pipelines;Billmann,1982
2. A method for leak detection and localization in gaspipelines;Billmann,1983
3. Methoden zur Lecküberwachung und Regelung von Gasfernleitungen;Billmann;VDI-Fortschr. Ber.,1985
4. Real-time failure detection and identification applied to supervision of oil transport in pipelines;Digernes;Modeling, Ident. Control,1980
5. Process fault detection based on modelling and estimation methods—a survey;Isermann,1982