| article html file updated | 7 February 2020 09:09 CET | Update | https://www.mdpi.com/2304-8158/5/2/39 |
| article html file updated | 5 May 2019 14:55 CEST | Update | N/A |
| article html file updated | 27 March 2019 05:32 CET | Update | N/A |
| article html file updated | 10 February 2017 03:46 CET | Update | N/A |
| article html file updated | 5 July 2016 06:38 CEST | Update | N/A |
| article html file updated | 24 May 2016 08:57 CEST | Original file | N/A |
| article xml uploaded. | 24 May 2016 08:56 CEST | Original file | https://www.mdpi.com/2304-8158/5/2/39/xml |
| article pdf uploaded. | 24 May 2016 08:56 CEST | Version of Record | https://www.mdpi.com/2304-8158/5/2/39/pdf |
