Wu, T.; Mao, J.; Wang, J.; Wu, J.; Xie, Y. (2009). "A New On-Line Visual Ferrograph". Tribology Transactions. 52 (5): 623–631. doi:10.1080/10402000902825762. S2CID108704539 – via Taylor & Francis Online.
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Wu, T.; Mao, J.; Wang, J.; Wu, J.; Xie, Y. (2009). "A New On-Line Visual Ferrograph". Tribology Transactions. 52 (5): 623–631. doi:10.1080/10402000902825762. S2CID108704539 – via Taylor & Francis Online.