1. THE STRAIN ENERGY IN LOOSENING THE CLAMPED END OF A BEAM (PART I). Authors: PATRIC-TIMOTEI STAN, ZENO-IOSIF PRAISACH, GILBERT-RAINER GILLICH, TIBERIU MĂNESCU, CRISTIAN TUFIȘI.2. EIGENVALUES OF A CONTINUOUS BEAM WITH TWO SPANS. Authors: ZENO-IOSIF PRAISACH, PATRIC-TIMOTEI STAN.