1. Aitchison, J.
,
Gilchrist, A.
and
Bawden, D.
(2001), Thesaurus Construction and Use: a Practical Manual, 4th ed., Aslib, London.
2. Blanch, R.
and
Lecolinet, E.
(2007), “Browsing zoomable treemaps: structure-aware multi-scale navigation techniques”, IEEE Transactions on Visualization and Computer Graphics, Vol. 13 No. 6, pp. 1248-1253.
3. Bruno, D.
and
Richmond, H.
(2003), “The truth about taxonomies”, Information Management Journal, Vol. 37 No. 2, pp. 48-52.
4. Clyphan, R.
and
Sugimoto, G.
(2009), “Europeana Semantic Element ESE v3.4.1”, available at: http://pro.europeana.eu/web/guest/technical-requirements/ (accessed 25 September 2013).
5. Dimitropoulos, A.
,
Koutoumanos, A.
,
Stoitsis, J.
,
Sanchez-Alonso, S.
,
Kastrantas, K.
and
Sicilia, M.-A.
(2011), “A community oriented approach providing truly multilingual access to agricultural learning objects”, paper presented at The EFITA/VOA3R Workshop on Open Access Agriculture & Aquaculture Repositories, 11-14 July, Prague.