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Communicated by M. M. Schiffer
This research was sponsored by the Air Force Office of Scientific Research, Office of Aerospace Research, United States Air Force, under AFOSR Grant No. AFOSR-68-1531.
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Clark, C. On the growth of the eigenvalues of the Laplacian operator in a quasibounded domain. Arch. Rational Mech. Anal. 31, 352–356 (1968). https://doi.org/10.1007/BF00251416
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DOI: https://doi.org/10.1007/BF00251416