Authors are invited to submit paper titles and extended abstracts under the themes of the colloquium. They should be submitted to 26ruralcolloquium@gmail.com

All the accepted extended abstracts will be published in a peer-reviewed book that will be available to participants at the beginning of the conference, and for download from the conference website and other relevant websites.

There will be guidelines for the presentation of these extended abstracts, as follows:

> They should be adapted to the template provided by the Organising Committee, available in September 2017 on the website.

> They will not exceed 3,000 words (including references).

> They will contain the following sections: introduction (clearly stating the problem/objective of the paper), theoretical insights, methodology, findings/results, discussion/conclusion and list of references.

> References should be formatted using the Harvard-style within the text.

> Footnotes should be avoided.

> They should include a maximum of four figures (including maps), and will be included in the word count.

> They should be written in one of the following four languages: English, French, Spanish and Portuguese (including the Galician standard). When written in Spanish and Portuguese, they have to include a short abstract (maximum 200 words) in English, adhering to the correct English expression conventions.

With regard to the oral presentations during the colloquium, please take into account that if you use Spanish or Portuguese in your presentations, then you should show your presentation slides in one of the IGU official languages.

In some of the thematic sessions, there is the possibility that papers could be selected for inclusion in special issues of journals listed in SCOPUS/SSCI. Two special issues have already been convened by interested editors. These papers will be peer-reviewed according to the respective journals’ guidelines after the conference.

26TH ANNUAL COLLOQUIUM OF THE COMMISSION ON THE SUSTAINABILITY OF RURAL SYSTEMS. INTERNATIONAL GEOGRAPHICAL UNION