The work of the thesis was carried out in Strasbourg but Thom presented it to Paris The foundations of the theory of cobordism for which Thom later received a Fields Medal already appear in his doctoral thesis

Please fix the punctuation.
The work of the thesis was carried out in Strasbourg but Thom presented it to Paris. The foundations of the theory of cobordism, for which Thom later received a Fields Medal , already appear in his doctoral thesis.