Here is a list of all documented files with brief descriptions:

example
TwoSquares
TwoSquares.cpp	Simple serial example showing Moertel usage and solver interfaces
src
mortar
mrtr_function.H
mrtr_functions.H	A couple of shape functions for 1D and 2D elements
mrtr_integrator.H
mrtr_interface.H
mrtr_lm_selector.H
mrtr_manager.H
mrtr_ml_preconditioner.H
mrtr_node.H
mrtr_pnode.H
mrtr_point.H
mrtr_projector.H
mrtr_segment.H
mrtr_segment_bilinearquad.H
mrtr_segment_bilineartri.H
mrtr_segment_linear1D.H
mrtr_solver.H
mrtr_utils.H	A couple utility methods for the Moertel package