| article html file updated | 7 February 2020 10:26 CET | Update | https://www.mdpi.com/2220-9964/5/6/98 |
| article html file updated | 5 May 2019 12:27 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:57 CET | Update | N/A |
| article html file updated | 29 June 2016 05:48 CEST | Update | N/A |
| article html file updated | 20 June 2016 15:20 CEST | Original file | N/A |
| article xml uploaded. | 20 June 2016 15:18 CEST | Original file | https://www.mdpi.com/2220-9964/5/6/98/xml |
| article pdf uploaded. | 20 June 2016 15:18 CEST | Version of Record | https://www.mdpi.com/2220-9964/5/6/98/pdf |
