Abstract
The view-obstruction problem was first introduced by T. W. Cusick. In his 1972 paper [10] he stated the following problem.
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Mukhopadhyay, A. (2002). The View-obstruction Problem. In: Adhikari, S.D., Katre, S.A., Ramakrishnan, B. (eds) Current Trends in Number Theory. Hindustan Book Agency, Gurgaon. https://doi.org/10.1007/978-93-86279-09-5_8
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DOI: https://doi.org/10.1007/978-93-86279-09-5_8
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