Gaseous storage in small quantities can be accomplished with single walled gas cylinders. Liquid storage is accomplished in pressure vessels that are insulated with vacuum systems that control the heat transfer to the liquid that would otherwise vaporize the hydrogen that would need to then be vented.
About these documents
This website centralises publications on hydrogen, with a particular focus on technology and especially safety.
The publications are issued by industrial gases associations or standardisation bodies.
Depending on the issuing organisation, some publications may not be available for free download.