| article html file updated | 7 February 2020 19:57 CET | Update | https://www.mdpi.com/1424-2818/8/4/32 |
| article html file updated | 22 September 2019 13:16 CEST | Update | - |
| article html file updated | 4 May 2019 18:33 CEST | Update | - |
| article html file updated | 29 December 2016 06:47 CET | Update | - |
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| article xml uploaded. | 20 December 2016 07:46 CET | Update | https://www.mdpi.com/1424-2818/8/4/32/xml |
| article pdf uploaded. | 20 December 2016 07:46 CET | Updated version of record | https://www.mdpi.com/1424-2818/8/4/32/pdf |
| article html file updated | 20 December 2016 07:20 CET | Original file | - |
| article xml uploaded. | 20 December 2016 07:19 CET | Original file | - |
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