| article html file updated | 8 February 2020 01:12 CET | Update | https://www.mdpi.com/1660-3397/15/3/68 |
| article html file updated | 23 September 2019 18:16 CEST | Update | N/A |
| article html file updated | 4 May 2019 07:19 CEST | Update | N/A |
| article html file updated | 27 March 2017 11:25 CEST | Update | N/A |
| article html file updated | 10 March 2017 10:35 CET | Original file | N/A |
| article xml uploaded. | 10 March 2017 10:34 CET | Original file | https://www.mdpi.com/1660-3397/15/3/68/xml |
| article pdf uploaded. | 10 March 2017 10:34 CET | Version of Record | https://www.mdpi.com/1660-3397/15/3/68/pdf |
