| article html file updated | 12 February 2020 02:18 CET | Update | https://www.mdpi.com/2311-5521/4/2/63 |
| article html file updated | 17 October 2019 13:58 CEST | Update | N/A |
| article html file updated | 5 July 2019 06:34 CEST | Update | N/A |
| article html file updated | 21 May 2019 15:20 CEST | Original file | N/A |
| article pdf uploaded. | 21 May 2019 15:18 CEST | Updated version of record | https://www.mdpi.com/2311-5521/4/2/63/pdf |
| article xml uploaded. | 21 May 2019 15:18 CEST | Update | https://www.mdpi.com/2311-5521/4/2/63/xml |
| article xml file uploaded | 21 May 2019 15:18 CEST | Update | N/A |
| article pdf uploaded. | 19 April 2019 10:08 CEST | Updated version of record | https://www.mdpi.com/2311-5521/4/2/63/pdf-vor |
| article pdf uploaded. | 1 April 2019 17:10 CEST | Version of Record | https://www.mdpi.com/2311-5521/4/2/63/pdf-vor |
| article xml file uploaded | 1 April 2019 17:10 CEST | Original file | N/A |
