I found an issue with the links in the generated documentation.

type Bar = 'foo' | 'bar'

export class Foo {
    public foo(bar: Bar) : void {
    }
}

The documentation for method foo results in a link to ../undefineds/Bar.html in the signature description, but has the correct link to typealiases.html in detail description for parameter bar.

See this example to reproduce the issue.