| article html file updated | 6 February 2020 16:07 CET | Update | https://www.mdpi.com/2227-7072/3/1/49 |
| article html file updated | 7 May 2019 00:40 CEST | Update | N/A |
| article html file updated | 25 March 2019 22:04 CET | Update | N/A |
| article html file updated | 10 October 2015 06:31 CEST | Update | N/A |
| article xml file uploaded | 10 October 2015 06:31 CEST | Update | https://www.mdpi.com/2227-7072/3/1/49/xml |
| article html file updated | 21 August 2015 07:56 CEST | Update | N/A |
| article html file updated | 3 March 2015 07:00 CET | Original file | N/A |
| article xml file uploaded | 3 March 2015 07:00 CET | Original file | N/A |
| article pdf uploaded. | 25 February 2015 08:54 CET | Version of Record | https://www.mdpi.com/2227-7072/3/1/49/pdf |
