Another font name question

While we're on the subject of font names, should a conforming SVG viewer
handle a font name that includes a style like Bold or Italic? Given this g
element, (forget about the single quotes around the font name for now)

<g style"font-family:Times New Roman Bold">

the IBM viewer selects Times Roman Bold. Is this proper SVG behavior or must
the Bold and Italic requests be handled via font-weight and font-style
attributes?

Rick