Citation: G. Vanderwerf, DIFFERENCES IN SCHOOL AND INSTRUCTION CHARACTERISTICS BETWEEN HIGH-EFFECTIVE, AVERAGE-EFFECTIVE, AND LOW-EFFECTIVE SCHOOLS, School effectiveness and school improvement, 8(4), 1997, pp. 430-448
Citation: A. Tonino et G. Vanderwerf, DIRECT REPAIR OF LUMBAR SPONDYLOLYSIS - 10-YEAR FOLLOW-UP OF 12 PREVIOUSLY REPORTED CASES, Acta orthopaedica Scandinavica, 65(1), 1994, pp. 91-93