1. Analysis and testing of adhesive bonds;Anderson,1977
2. Joints of metals in the solid phase;Karakozov,1976
3. Ultraschallprüfung zur Bestimmung der Bindungs qualität;Meyer;Metalloberflache,1967
4. Ultrasonic testing in welding;Pawlowski;Przeglad Spawalnictwa,1968
5. Pawlowski, Z. ‘Analysis of the possibilities of strength evaluation of adhesive bonds’ Report IPPT PAN ZXP 35/69 (in Polish)