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P. Haarsa, S. Pothat       The energy method on wave equation in a resistant medium with series expansion       Applied Mathematical Sciences, Vol. 8, 2014, no. 117, 5831-5834
      http://dx.doi.org/10.12988/ams.2014.46476
Copyright © 2014 P. Haarsa and S. Pothat. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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