@BOOK{Khi97,
  title = {Continued fractions},
  publisher = {Dover Publications},
  year = {1997},
  author = {Khinchin, A. Ya.},
  pages = {xii+95},
  address = {Mineola, NY},
  note = {Reprint of the 1964 translation},
  isbn = {0-486-69630-8},
  mrclass = {11A55 (01A75 11-03 11J70)},
  mrnumber = {1451873}
}