| article html file updated | 8 February 2020 07:29 CET | Update | https://www.mdpi.com/2076-0760/6/2/58 |
| article html file updated | 25 September 2019 04:17 CEST | Update | N/A |
| article html file updated | 3 May 2019 18:57 CEST | Update | N/A |
| article html file updated | 6 June 2017 12:32 CEST | Original file | N/A |
| article xml uploaded. | 6 June 2017 12:31 CEST | Original file | https://www.mdpi.com/2076-0760/6/2/58/xml |
| article pdf uploaded. | 6 June 2017 12:31 CEST | Updated version of record | https://www.mdpi.com/2076-0760/6/2/58/pdf |
| article pdf uploaded. | 5 June 2017 10:55 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/2/58/pdf-vor |
