| article html file updated | 9 February 2020 07:03 CET | Update | https://www.mdpi.com/2218-1997/4/2/42 |
| article html file updated | 1 May 2019 17:32 CEST | Update | N/A |
| article html file updated | 17 April 2019 16:53 CEST | Update | N/A |
| article html file updated | 29 March 2019 00:13 CET | Update | N/A |
| article html file updated | 14 March 2018 09:43 CET | Update | N/A |
| article html file updated | 26 February 2018 09:59 CET | Update | N/A |
| article xml uploaded. | 26 February 2018 09:57 CET | Update | https://www.mdpi.com/2218-1997/4/2/42/xml |
| article pdf uploaded. | 26 February 2018 09:57 CET | Updated version of record | https://www.mdpi.com/2218-1997/4/2/42/pdf |
| article html file updated | 24 February 2018 08:01 CET | Update | N/A |
| article xml uploaded. | 24 February 2018 08:00 CET | Update | N/A |
| article xml uploaded. | 24 February 2018 08:00 CET | Update | N/A |
| article pdf uploaded. | 24 February 2018 08:00 CET | Updated version of record | https://www.mdpi.com/2218-1997/4/2/42/pdf-vor |
| article html file updated | 23 February 2018 17:47 CET | Original file | N/A |
| article xml uploaded. | 23 February 2018 17:45 CET | Update | N/A |
| article xml uploaded. | 23 February 2018 17:45 CET | Original file | N/A |
| article pdf uploaded. | 23 February 2018 17:45 CET | Updated version of record | https://www.mdpi.com/2218-1997/4/2/42/pdf-vor |
| article pdf uploaded. | 19 February 2018 09:44 CET | Version of Record | https://www.mdpi.com/2218-1997/4/2/42/pdf-vor |
