| article html file updated | 8 February 2020 07:10 CET | Update | https://www.mdpi.com/2304-6775/5/2/15 |
| article html file updated | 25 September 2019 02:42 CEST | Update | - |
| article html file updated | 3 May 2019 19:34 CEST | Update | - |
| article html file updated | 29 June 2017 12:22 CEST | Update | - |
| article html file updated | 1 June 2017 09:08 CEST | Original file | - |
| article xml uploaded. | 1 June 2017 09:07 CEST | Original file | https://www.mdpi.com/2304-6775/5/2/15/xml |
| article pdf uploaded. | 1 June 2017 09:07 CEST | Version of Record | https://www.mdpi.com/2304-6775/5/2/15/pdf |
