Talvez deva tentar algumas variações de ortografia:
mattner jochen » walter jochen (Expandir a Pesquisa)
walter viola » walter vilella (Expandir a Pesquisa), walter villela (Expandir a Pesquisa), walter jolan (Expandir a Pesquisa)
low walter » low water (Expandir a Pesquisa), lukiw walter (Expandir a Pesquisa)
j mattner » f mattner (Expandir a Pesquisa), j trattner (Expandir a Pesquisa), j matthew (Expandir a Pesquisa)
maier mol » maier m (Expandir a Pesquisa), maier max (Expandir a Pesquisa), maier don (Expandir a Pesquisa)
j mather » j mathew (Expandir a Pesquisa), j maher (Expandir a Pesquisa), j matthew (Expandir a Pesquisa)
mather m » mather _ (Expandir a Pesquisa), mather h (Expandir a Pesquisa), mather k (Expandir a Pesquisa)
jochen b » jochen h (Expandir a Pesquisa), jochen c (Expandir a Pesquisa)
viola b » viola _ (Expandir a Pesquisa), viola a (Expandir a Pesquisa)
m low » m loew (Expandir a Pesquisa), m lowe (Expandir a Pesquisa), _ low (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j mather m low walter viola b ) or ( j mattner jochen b maier mol med ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j mather m low walter viola b ) OR ( j mattner jochen b maier mol med ))*.