| article html file updated | 8 February 2020 02:46 CET | Update | https://www.mdpi.com/2311-5637/3/2/13 |
| article html file updated | 24 September 2019 03:13 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:54 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:27 CEST | Update | N/A |
| article html file updated | 1 April 2017 12:16 CEST | Original file | N/A |
| article xml uploaded. | 1 April 2017 12:15 CEST | Original file | https://www.mdpi.com/2311-5637/3/2/13/xml |
| article pdf uploaded. | 1 April 2017 12:15 CEST | Version of Record | https://www.mdpi.com/2311-5637/3/2/13/pdf |
