| article html file updated | 8 February 2020 06:54 CET | Update | https://www.mdpi.com/2311-5521/2/2/28 |
| article html file updated | 3 May 2019 20:02 CEST | Update | N/A |
| article html file updated | 27 October 2017 10:11 CEST | Update | N/A |
| article html file updated | 9 June 2017 08:27 CEST | Update | N/A |
| article xml uploaded. | 9 June 2017 08:26 CEST | Update | https://www.mdpi.com/2311-5521/2/2/28/xml |
| article pdf uploaded. | 9 June 2017 08:26 CEST | Updated version of record | https://www.mdpi.com/2311-5521/2/2/28/pdf |
| article html file updated | 30 May 2017 09:43 CEST | Original file | N/A |
| article pdf uploaded. | 30 May 2017 09:42 CEST | Updated version of record | https://www.mdpi.com/2311-5521/2/2/28/pdf-vor |
| article pdf uploaded. | 27 May 2017 13:21 CEST | Version of Record | https://www.mdpi.com/2311-5521/2/2/28/pdf-vor |
