TY - JOUR PB - American Physical Society ID - 10.1103/Physics.6.7 TI - Coffee Stains Test Universal Equation JF - Physics JA - Physics J1 - PHYSICS VL - 6 IS - SP - 7 EP - PY - 2013/01/18/ UR - http://link.aps.org/doi/10.1103/Physics.6.7 A1 - Krieger, Kim ER -