| article html file updated | 8 February 2020 06:36 CET | Update | https://www.mdpi.com/2311-5637/3/2/23 |
| article html file updated | 24 September 2019 23:50 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:35 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:28 CEST | Update | N/A |
| article html file updated | 24 May 2017 16:47 CEST | Original file | N/A |
| article xml uploaded. | 24 May 2017 16:45 CEST | Original file | https://www.mdpi.com/2311-5637/3/2/23/xml |
| article pdf uploaded. | 24 May 2017 16:45 CEST | Version of Record | https://www.mdpi.com/2311-5637/3/2/23/pdf |
