TY - RPRT TI - Solving massive-scale inverse problems using matrix-fre dequential quadratic programming (SQP) methods. AU - Ridzal, Denis AU - Aguilo Valentin, Miguel Alejandro AU - Young, Jeffrey T. AU - heinkenschloss, M. PY - 2013 UR - https://www.osti.gov/biblio/1095564 ID - 1095564 ER -