BibTeX, biblatex and biber ⇒ Year not present in bibliography output

[Confused_engineer]

Hello everyone.
I want to cite two articles as follows:


@article{planning2010concept,
title={{Concept of Operations for the Next Generation Air Transportation System, Ver. 3.2}},
author={{Joint Planning and Development Office}},
journal={http://ntrs. nasa. gov/archive/nasa/casi. ntrs. nasa. gov/20110008502\_2011007120. pdf},
year={2010}
}

and

@article{bureau2010long,
author = {{Japan Civil Aviation Bureau}},
journal = {http://www. mlit. go. jp/koku/koku\_CARATS. html},
title = {Long-term vision for the future air traffic systems (CARATS)},
year = {2012}}

However, as can be seen in https://ibb.co/LCLHxBw, the year does not appear when the reference is made.

Can someone please help me with this?

Best regards.

[Kreuz Elf]

which bibliography package do you use?
which bibliography style do you use?