no. 2
The palindromic index - A measure of ambiguous cycles of reduced ideals without any ambiguous ideals in real quadratic orders
Journal de Théorie des Nombres de Bordeaux, Tome 7 (1995) no. 2, pp. 447-460.

Herein we introduce the palindromic index as a device for studying ambiguous cycles of reduced ideals with no ambiguous ideal in the cycle.

Classification : 11R11,  11R29,  11R65
Mots clés : quadratic order, class number, palindromic index, ambiguous cycle, continued fractions, reduced ideals 
@article{JTNB_1995__7_2_447_0,
     author = {Mollin, Richard A.},
     title = {The palindromic index - {A} measure of ambiguous cycles of reduced ideals without any ambiguous ideals in real quadratic orders},
     journal = {Journal de Th\'eorie des Nombres de Bordeaux},
     pages = {447--460},
     publisher = {Universit\'e Bordeaux I},
     volume = {7},
     number = {2},
     year = {1995},
     zbl = {0855.11054},
     mrnumber = {1378590},
     language = {en},
     url = {http://www.numdam.org/item/JTNB_1995__7_2_447_0/}
}
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Mollin, Richard A. The palindromic index - A measure of ambiguous cycles of reduced ideals without any ambiguous ideals in real quadratic orders. Journal de Théorie des Nombres de Bordeaux, Tome 7 (1995) no. 2, pp. 447-460. http://www.numdam.org/item/JTNB_1995__7_2_447_0/

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