| article html file updated | 12 February 2020 05:04 CET | Update | https://www.mdpi.com/2311-5521/4/2/71 |
| article html file updated | 18 October 2019 06:44 CEST | Update | N/A |
| article html file updated | 5 July 2019 06:36 CEST | Update | N/A |
| article html file updated | 8 May 2019 11:58 CEST | Original file | N/A |
| article pdf uploaded. | 8 May 2019 11:54 CEST | Updated version of record | https://www.mdpi.com/2311-5521/4/2/71/pdf |
| article xml uploaded. | 8 May 2019 11:54 CEST | Update | https://www.mdpi.com/2311-5521/4/2/71/xml |
| article xml file uploaded | 8 May 2019 11:54 CEST | Update | N/A |
| article pdf uploaded. | 12 April 2019 18:19 CEST | Version of Record | https://www.mdpi.com/2311-5521/4/2/71/pdf-vor |
| article xml file uploaded | 12 April 2019 18:19 CEST | Original file | N/A |
