1. Faceted author search does not produce any results:
There are three spellings of Wieslaw Krzeminski:
Krzeminski, W - no references: http://fossilinsects.myspecies.info/biblio?sort=asc&order=Year&f0=im_biblio_contributor%3A5400
Krzeminski, W. - no references: http://fossilinsects.myspecies.info/biblio?sort=asc&order=Year&f0=im_biblio_contributor%3A11081
KRZEMINSKI, WIESŁAW - one reference: http://fossilinsects.myspecies.info/biblio?sort=asc&order=Year&f0=im_biblio_contributor%3A20493
Actually, there are 57 references of this author: http://fossilinsects.myspecies.info/biblio?f[author]=6794#overlay-context=biblio%3Ff%5B0%5D%3Dim_biblio_contributor%253A6794%26sort%3Dasc%26order%3DYear
2. It seems that linking of different spellings is faulty. Another author, Ewa Krzeminska is automatically being linked to W. Krzeminski (she is his wife, but Drupal cannot know it :). If you try to correct and link all E Krzeminska spelling together, then W. Krzeminski linking is ruined, and visa versa.
3. Search seem to retain current filters but not search results, so it is impossible to narrow down the search.
4. Search operates with "OR" operator, not "AND" "Krzeminski Limoniidae" returns significantly more results than "Krzeminski"
5. Search returns files, but does not display them:http://fossilinsects.myspecies.info/search/site/krzeminski%201994?f0=bundle%3Aapplication