TY - JOUR T1 - Two faces of panel analysis: Parallels with comparative cross-sectional analysis and time-lagged association AU - Duncan, Otis Dudley PY - 1981 SP - 281 EP - 318 JO - Sociological Methodology VL - 12 SN - 0081-1750 UR - http://www.jstor.org/stable/270744 ER -