TY - JOUR AU - Dmitry Gayfulin TI - Attainable numbers and the Lagrange spectrum JO - Acta Arithmetica PY - 2017 SP - 185 EP - 199 VL - 179 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa8588-12-2016/ DO - 10.4064/aa8588-12-2016 LA - en ID - 10_4064_aa8588_12_2016 ER -