| article html file updated | 8 February 2020 03:58 CET | Update | https://www.mdpi.com/2311-5637/3/2/15 |
| article html file updated | 24 September 2019 10:04 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:28 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:27 CEST | Update | N/A |
| article html file updated | 20 April 2017 11:19 CEST | Original file | N/A |
| article xml uploaded. | 20 April 2017 11:18 CEST | Original file | https://www.mdpi.com/2311-5637/3/2/15/xml |
| article pdf uploaded. | 20 April 2017 11:18 CEST | Version of Record | https://www.mdpi.com/2311-5637/3/2/15/pdf |
