Grieg, D. D.; Engelmann, H. F. (Dec 1952). "Microstrip-A New Transmission Technique for the Klilomegacycle Range". Proceedings of the IRE. 40 (12): 1644-1650. doi:10.1109/JRPROC.1952.274144. ISSN0096-8390.
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Grieg, D. D.; Engelmann, H. F. (Dec 1952). "Microstrip-A New Transmission Technique for the Klilomegacycle Range". Proceedings of the IRE. 40 (12): 1644-1650. doi:10.1109/JRPROC.1952.274144. ISSN0096-8390.