| article html file updated | 8 February 2020 08:03 CET | Update | https://www.mdpi.com/2078-2489/8/2/64 |
| article html file updated | 25 September 2019 07:11 CEST | Update | - |
| article html file updated | 3 May 2019 17:54 CEST | Update | - |
| article html file updated | 28 June 2017 13:49 CEST | Update | - |
| article html file updated | 12 June 2017 05:21 CEST | Original file | - |
| article xml uploaded. | 12 June 2017 05:20 CEST | Original file | https://www.mdpi.com/2078-2489/8/2/64/xml |
| article pdf uploaded. | 12 June 2017 05:20 CEST | Version of Record | https://www.mdpi.com/2078-2489/8/2/64/pdf |
