| article html file updated | 7 February 2020 20:19 CET | Update | https://www.mdpi.com/2311-5637/3/1/2 |
| article html file updated | 22 September 2019 15:15 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:47 CEST | Update | N/A |
| article html file updated | 30 March 2017 03:24 CEST | Update | N/A |
| article html file updated | 29 March 2017 11:58 CEST | Update | N/A |
| article html file updated | 29 March 2017 11:54 CEST | Update | N/A |
| article html file updated | 26 December 2016 10:51 CET | Original file | N/A |
| article xml uploaded. | 26 December 2016 10:50 CET | Original file | https://www.mdpi.com/2311-5637/3/1/2/xml |
| article pdf uploaded. | 26 December 2016 10:50 CET | Version of Record | https://www.mdpi.com/2311-5637/3/1/2/pdf |
