Author name changes

[Hákon]

I was adding this book and got two author names wrong.

First I typed Robert Marvin, but I should have been Róbert Marvin Gíslason. I did add that name also, but Robert Marvin should be deleted.

Secondly I typed Sirry Sig. which should be Sirrý Sig (and it should be without the dot so it connects to the right author profile.

Can somebody clean this mess up for me?

Thanks in advance. :-)

[Arenda]

Removed Robert Marvin and Sirry Sig. from the book, added Sirrý Sig

[Hákon]

Thanks Arenda. :-)