//-->
Testing the null hypothesis of stationarity against the alternative of a unit root in panel data with serially correlated errors
Hadri, Kaddour, (1999)
Stochastic common trends and long-run relationships in heterogeneous panels
Hall, Stephen G., (1995)
Bootstrap unit root tests in panels with cross-sectional dependency
Chang, Yoosoon, (2000)
Vector autoregressions with unknown mixtures of /(0), /(1), and /(2) components
Nonlinear IV unit root tests in panels with cross-sectional dependency
Chang, Yoosoon, (2002)