| article html file updated | 8 February 2020 04:11 CET | Update | https://www.mdpi.com/2313-433X/3/2/15 |
| article html file updated | 24 September 2019 11:13 CEST | Update | - |
| article html file updated | 4 May 2019 01:06 CEST | Update | - |
| article html file updated | 17 May 2017 05:35 CEST | Update | - |
| article xml uploaded. | 17 May 2017 05:34 CEST | Update | https://www.mdpi.com/2313-433X/3/2/15/xml |
| article pdf uploaded. | 17 May 2017 05:34 CEST | Updated version of record | https://www.mdpi.com/2313-433X/3/2/15/pdf |
| article html file updated | 24 April 2017 14:02 CEST | Original file | - |
| article pdf uploaded. | 24 April 2017 14:01 CEST | Updated version of record | https://www.mdpi.com/2313-433X/3/2/15/pdf-vor |
| article pdf uploaded. | 22 April 2017 12:27 CEST | Version of Record | https://www.mdpi.com/2313-433X/3/2/15/pdf-vor |
