| article html file updated | 8 February 2020 03:24 CET | Update | https://www.mdpi.com/2306-5354/4/2/33 |
| article html file updated | 24 September 2019 06:41 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:34 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:35 CEST | Update | N/A |
| article html file updated | 12 April 2017 10:47 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2017 10:46 CEST | Original file | https://www.mdpi.com/2306-5354/4/2/33/xml |
| article pdf uploaded. | 12 April 2017 10:46 CEST | Version of Record | https://www.mdpi.com/2306-5354/4/2/33/pdf |
