We discuss and illustrate the behaviour of the continued fraction expansion of a formal power series under specialisation of parameters or their reduction modulo $p$ and sketch some applications of the reduction theorem here proved.
Combinatorial structure of Sturmian words and continued fraction expansions of Sturmian numbers
On the period of the continued fraction expansion of ${\sqrt {2^{2n+1}+1}}$
On the continued fraction expansion of a class of numbers
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