{"BridgesAndTunnels-231211" -> 
  "The Alexander polynomial using bridges, tunnels, and Alexander numbering."\
, "BridgesAndTunnels-231213" -> 
  "The Alexander polynomial using bridges, tunnels, and Alexander numbering."\
, "BridgesAndTunnels-231214" -> 
  "The Alexander polynomial using bridges, tunnels, and Alexander numbering."\
, "BridgesAndTunnels" -> 
  "The Alexander polynomial using bridges, tunnels, and Alexander numbering."}
