| article html file updated | 6 February 2020 23:27 CET | Update | https://www.mdpi.com/2079-8954/3/4/152 |
| article html file updated | 6 May 2019 10:01 CEST | Update | N/A |
| article html file updated | 26 March 2019 11:57 CET | Update | N/A |
| article html file updated | 9 October 2015 06:17 CEST | Original file | N/A |
| article xml file uploaded | 9 October 2015 06:17 CEST | Original file | https://www.mdpi.com/2079-8954/3/4/152/xml |
| article pdf uploaded. | 1 October 2015 09:06 CEST | Version of Record | https://www.mdpi.com/2079-8954/3/4/152/pdf |
