Kyritsis, K. E. (2019). The solutions of the 3rd and 4th Clay Millennium problems.
Tohutoru Kātū Chicago (17th ed.)Kyritsis, Konstantinos E. The Solutions of the 3rd and 4th Clay Millennium Problems. 2019.
Tohutoro MLA (9th ed.)Kyritsis, Konstantinos E. The Solutions of the 3rd and 4th Clay Millennium Problems. 2019.
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