1. Iones, R., ‘Non-destructive testing of concrete’ (University Press, Cambridge, 1962).
2. Jones, R. and Facaoaru, I., ‘Non-destructive testing of concrete’ (Strojizdat, Moscow, 1974, only available in Russian).
3. Stawiski, B., ‘Effect of material and technological factors on accuracy of determining strengths by the ultrasonic method’, in ‘Nondestructive testing in building engineering’, Proceedings of an 2nd Symposium, Wroclaw, 1976, 77–85 (only available in Polish).
4. Stawiski, B., ‘Testing of certain materials and building structures by selected non-destructive methods’ (CUTOB, Wroclaw, 1988, only available in Polish).
5. Domaslawski, W., ‘Preventive maintenance of historical stone objects’ (Mikolaj Kopernik University, Torun, 1993, only available in Polish).