| article html file updated | 8 February 2020 05:16 CET | Update | https://www.mdpi.com/2311-5637/3/2/18 |
| article html file updated | 24 September 2019 16:52 CEST | Update | N/A |
| article html file updated | 3 May 2019 23:07 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:28 CEST | Update | N/A |
| article html file updated | 23 May 2017 03:50 CEST | Update | N/A |
| article html file updated | 7 May 2017 07:57 CEST | Original file | N/A |
| article xml uploaded. | 7 May 2017 07:55 CEST | Update | https://www.mdpi.com/2311-5637/3/2/18/xml |
| article pdf uploaded. | 7 May 2017 07:55 CEST | Version of Record | https://www.mdpi.com/2311-5637/3/2/18/pdf |
