TI - The burden of teenage work: effects on sleep duration PY - 2007 AU - Fischer, Frida Marina AU - Nagai, R AU - Balian, A. C AU - Teixeira, Liliane Reis T2 - Symposium on Shiftwork and Working Time J2 - Shiftwork International Newsletter SN - 0265-5357 PP - Edinburgh VL - 24 IS - 2 SP - 45 ER -