Ramanujan's evaluations of Rogers-Ramanujan type continued fractions at primitive roots of unity Sen-Shan Huang (1997) Acta Arithmetica
Reflections on Value Regions, Limit Regions and Truncation Errors for Continued Fractions. Egil Rye, Haakon Waadeland (1985) Numerische Mathematik
Repeated Modifications of Limit k-Periodic continued Fractions. Lisa Jacobsen (1985) Numerische Mathematik