References
Deuring, M.: Die Typen der Multiplikatorenringe elliptischer Funktionenkörper. Abh. Math. Sem. Hamburg14, 197–272 (1941)
Demazure, M., Gabriel, P.: Groupes algébriques, I. Amsterdam: North-Holl. Publ. Cy. 1970
Honda, T.: Isogeny classes of abelian varieties over finite fields. Journ. Math. Soc. Japan20, 83–95 (1968)
Lenstra, H. W. Jr., Oort, F.: Simple abelian varieties having a prescribed formal isogeny type. Journ. pure appl. algebra4, 47–53 (1974)
Manin, Yu. I.: The theory of commutative formal groups over fields of finite characteristic. Russ. Math. Surveys18, 1–80 (1963)
Milne, J. S.: The homological dimension of commutative group schemes over a perfect field. Journ. Algebra16, 436–441 (1970)
Oort, F.: Commutative group schemes. Lect. Notes Math. 15, Berlin-Heidelberg-New York: Springer 1966
Oort, F., Oda, T.: Higher extensions of abelian varieties. Nagoya Math. J.31, 81–88 (1968)
Oort, F.: Subvarieties of moduli spaces. Inventiones math.24, 95–119 (1974)
Poletti, M.: Differentiali esatti di prima specie su varietà abeliane. Ann. Scuola norm. sup. Pisa, Sci. fis. mat.21, 107–110 (1967)
Serre, J.-P.: Espaces fibrés algébriques. Sém. C. Chevalley2, exp. 1 (1958)
Serre, J.-P.: Groupes proalgébriques. Publ. Math. No. 7, IHES, 1960
Waterhouse, W. C.: Abelian varieties over finite fields. Ann. sc. Ec. Norm. Sup.2, 521–560 (1969)
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Oort, F. Which abelian surfaces are products of elliptic curves?. Math. Ann. 214, 35–47 (1975). https://doi.org/10.1007/BF01428253
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DOI: https://doi.org/10.1007/BF01428253