%0 Journal Article %A Nenciu, Gheorghe %T On exponential decay of solutions of Schrödinger and Dirac equations : bounds of eigenfunctions corresponding to energies in the gaps of essential spectrum %J Journées équations aux dérivées partielles %D 1994 %P 1-10 %I Ecole polytechnique %U http://www.numdam.org/item/JEDP_1994____A7_0/ %G en %F JEDP_1994____A7_0