An Owl (p. 53)

  $\displaystyle \Circled{1}\ \underline{O}.1$    
  % latex2html id marker 2880
$\displaystyle \Circled{2}\ \mathpalette{\overarrow@\Leftarrowfill@}{R2}(\overline{Lp})\ \ensuremath{\char93 }:\ll\!R2\infty$    
  % latex2html id marker 2881
$\displaystyle \Circled{3}\ \mathpalette{\overarrow...
...palette{\overarrow@\Rightarrowfill@}{L2}(\underline{Rp})\ \ensuremath{\char93 }$    
  $\displaystyle \Circled{4}\ \textrm{as in Many Stars } \Circled{2}-\Circled{7}.$