%ISObox;
Box and Line Drawing for MathML
External file containing ISO Box and Line Drawing symbols
Model
<!ENTITY % ISObox PUBLIC "-//W3C//ENTITIES Box and Line Drawing for MathML 2.0//EN" "iso8879/isobox.ent" >
<!ENTITY % ISObox PUBLIC "-//W3C//ENTITIES Box and Line Drawing for MathML 2.0//EN" "iso8879/isobox.ent" >
Book Interchange Tag Suite (BITS) Version 2.0 Tag Library
Version of February 2016