| article html file updated | 8 February 2020 18:29 CET | Update | https://www.mdpi.com/2311-5521/2/4/55 |
| article html file updated | 27 September 2019 18:40 CEST | Update | N/A |
| article html file updated | 2 May 2019 21:12 CEST | Update | N/A |
| article html file updated | 2 January 2018 12:33 CET | Update | N/A |
| article html file updated | 27 October 2017 06:06 CEST | Update | N/A |
| article xml uploaded. | 27 October 2017 06:04 CEST | Update | https://www.mdpi.com/2311-5521/2/4/55/xml |
| article xml uploaded. | 27 October 2017 06:04 CEST | Update | N/A |
| article pdf uploaded. | 27 October 2017 06:04 CEST | Updated version of record | https://www.mdpi.com/2311-5521/2/4/55/pdf |
| article html file updated | 14 October 2017 13:01 CEST | Original file | N/A |
| article xml uploaded. | 14 October 2017 13:00 CEST | Update | N/A |
| article xml uploaded. | 14 October 2017 13:00 CEST | Original file | N/A |
| article pdf uploaded. | 14 October 2017 13:00 CEST | Version of Record | https://www.mdpi.com/2311-5521/2/4/55/pdf-vor |
