The result of [1] (entropy of a rational map is equal to the log of its degree)
constitutes my Master thesis (Kharkov, May 1980).

About one year later I learned about preprint by Gromov (undated and never published
but eventually influential, particularly in several
variables)

that proves the same result for the complex projective spaces
of any dimension.

Soon afterwards (in the fall 1980), I obtained the results of [3] (announced in [2]) on existence and uniqueness
of the measure of maximal entropy.

They became part of my PhD thesis (Tashkent, March 1984).

By the time [3] appeared, the work of Mane, Friere and Lopez on the same subject emerged.