https://reference.wolfram.com/system-modeler/libraries/Modelica/Modelica.Magnetic.FluxTubes.BaseClasses.FixedShape.html
Modelica: Magnetic.FluxTubes.BaseClasses.FixedShape - System Modeler Documentation
Base class for flux tubes with fixed shape during simulation; linear or non-linear material characteristics
system modelermodelicamagneticdocumentation
https://build.openmodelica.org/Documentation/Buildings.Fluid.Sources.Validation.BaseClasses.html
Buildings.Fluid.Sources.Validation.BaseClasses
buildingsfluidsourcesvalidation
https://code.mythtv.org/doxygen/BaseClasses_8cpp_source.html
MythTV: mythtv/libs/libmythfreemheg/BaseClasses.cpp Source File
mythtvlibscppsourcefile