Accommodation

Here are some suggestions for hotels within ~10 minutes from IBPC (prices are indicative):

André Latin
(120 Euros / night)
Comfort Inn Mouffetard
(135 Euros / night)
Senlis
(90 Euros / night)
Les Jardins du Luxembourg
(130 Euros / night)
Les Grands Hommes
(270 Euros / night)
La Sorbonne
(195 Euros / night)
Carroftel
(95 Euros / night)
Cardinal Rive Gauche
(135 Euros / night)
Le Petit Paris
(240 Euros / night)
Elysa Les Grandes Ecoles Le Brésil
Les Carmes Les 3 collèges Cluny Le Panthéon
Jardin Odéon Perreyve Gay Lussac  

Somewhat further:

Gare De Lyon
(120 Euros / night)
Timhôtel Italie
(115 Euros / night)
Hôtel Du Lion
(70 Euros / night)
Kyriad Alesia
(75 Euros / night)
Ariane Montparnasse Transcontinental    

Another possibility for students:

An international accommodation center in the heart of Paris FIAP