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In the present paper we describe a class of Gorenstein, finite and flat morphism $\varrho\colon X\to Y$ of degree $6$ of algebraic varieties, called anglo--american covers. We prove a general Bertini Theorem for them and we give some evidence that the cover $\varrho\colon A\to\p2k$ associated general $(1,3)$--polarized abelian surface is anglo--america

COVERS OF ALGEBRAIC VARIETIES VI. ANGLO-AMERICAN COVERS AND (1,3)-POLARIZED ABELIAN SURFACES