References

Electronic reference

Thierno Bocar Tall, « Foreword », Field Actions Science Reports [Online], Special Issue 15 | 2016, Online since 07 October 2016, connection on 27 May 2017. URL : http://factsreports.revues.org/4121

Bibliographical reference

Thierno Bocar Tall, « Foreword », Field Actions Science Reports, Special Issue 15 | 2016, 3.