bibrm:ERTypeValue & (non-existing) rdfs:type instead of rdf:type

[acka47]

I just took a look at the vocabulary as I am searching for an "ebook package" class. bibrm:EbookPackage might have done the job for me but looking at it I see two problems:

1. Instead of rdf:type rdfs:type is used which doesn't exist.
2. Many of the resources (including bibrm:EbookPackage) are typed as bibrm:ERTypeValue. I don't understand why (I'd expect owl:Class), especially as this class isn't defined anywhere in the vocabulary.

[white-gecko]

Thank you. I've fixed the type statements. Regarding the second issue, I'm not sure if it should be subClasses instead. I hope @splattater can tell us more.
bibrm:ERTypeValue might be bibrm:ERType instead …