| article html file updated | 7 February 2020 09:32 CET | Update | https://www.mdpi.com/2226-4310/3/2/16 |
| article html file updated | 5 May 2019 14:10 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:14 CET | Update | N/A |
| article html file updated | 27 June 2016 12:09 CEST | Update | N/A |
| article html file updated | 31 May 2016 14:08 CEST | Original file | N/A |
| article xml uploaded. | 31 May 2016 14:06 CEST | Update | https://www.mdpi.com/2226-4310/3/2/16/xml |
| article pdf uploaded. | 31 May 2016 14:06 CEST | Version of Record | https://www.mdpi.com/2226-4310/3/2/16/pdf |
