2006, Stanislaw Raczynski, Modeling and Simulation: The Computer Science of Illusion (page 31)The HLA defines the rules of interoperability, a semiformal methodology for specifying simulation and federation object classes, and the interface specification that is a precise specification of the functional actions that a simulation may invoke.
2007, Valery Garrett, Chinese Dress: From the Qing Dynasty to the Present (page 40)When wearing the dragon robe on semiformal occasions, a single necklace was appropriate. Only the empress or empress dowager could wear a main necklace formed of Manchurian pearls, the other two being made of coral.
