Chady, T., Psuj, G., Liaptsis, D., Avramidis, S., Castro, I., Lobato, K., Hankinson, N., Gregory, C. and Azpiri, I.U. 2013. Ultrasonic and electromagnetic inspections of railway hollow axles. Welding Technology Review. 85, 12 (Dec. 2013). DOI:https://doi.org/10.26628/wtr.v85i12.143.