Geodesic
On construction of formal groups with a~given distinguished homomorphism
Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 18, Tome 365 (2009), pp. 236-253

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It is known from Lubin–Tate theory that a Lubin–Tate formal group can be constructed by its distinguished isogeny, which can be taken to be an arbitrary power series (with a few restrictions). Analogous statement is also known for Honda formal groups. In the given article similar statement is proved in detail for $p$-typical formal groups in so-called small ramification case. It is also proved that a distinguished homomorphism, in general, can not be taken to be a polynomial. Bibl. – 6 titles. 
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     author = {E. V. Ferens-Sorotskiy},
     title = {On construction of formal groups with a~given distinguished homomorphism},
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     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2009_365_a13/}
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E. V. Ferens-Sorotskiy. On construction of formal groups with a~given distinguished homomorphism. Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 18, Tome 365 (2009), pp. 236-253. http://geodesic.mathdoc.fr/item/ZNSL_2009_365_a13/