| article html file updated | 8 February 2020 13:07 CET | Update | https://www.mdpi.com/2076-0760/6/3/91 |
| article html file updated | 26 September 2019 10:43 CEST | Update | N/A |
| article html file updated | 3 May 2019 07:47 CEST | Update | N/A |
| article html file updated | 27 March 2019 19:57 CET | Update | N/A |
| article html file updated | 27 October 2017 09:44 CEST | Update | N/A |
| article xml uploaded. | 27 October 2017 09:42 CEST | Update | https://www.mdpi.com/2076-0760/6/3/91/xml |
| article pdf uploaded. | 27 October 2017 09:42 CEST | Updated version of record | https://www.mdpi.com/2076-0760/6/3/91/pdf |
| article html file updated | 8 August 2017 16:05 CEST | Original file | N/A |
| article pdf uploaded. | 8 August 2017 16:04 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/3/91/pdf-vor |
