1 - Lectures on advanced ordinary differential equationsFriedrichs, Kurt Otto (1901-1983) / Berg, P. (Collab.) / Hirsch, W. (Collab.) / Treuenfels / PWN–Polish Scientific Publishers (Ed.)Cote : [47 FRI 65]
2 - Recent developments in general relativity : dedicated to Leopold Infeld in connection with his 60th birthdayPWN–Polish Scientific Publishers (Ed.)Cote : [92 PWN 62]
