Talvez deva tentar algumas variações de ortografia:
walter jolan » walter roland (Expandir a Pesquisa), walter jorn (Expandir a Pesquisa), walter jose (Expandir a Pesquisa)
maier i.l » maier il (Expandir a Pesquisa), maier ina (Expandir a Pesquisa), maier c.s (Expandir a Pesquisa)
der chem » der chen (Expandir a Pesquisa), der hem (Expandir a Pesquisa), der chemie (Expandir a Pesquisa)
d maier » b maier (Expandir a Pesquisa), _ maier (Expandir a Pesquisa), a maier (Expandir a Pesquisa)
j maher » m maher (Expandir a Pesquisa), a maher (Expandir a Pesquisa), g maher (Expandir a Pesquisa)
maher h » maher e (Expandir a Pesquisa), maher a (Expandir a Pesquisa), maher j (Expandir a Pesquisa)
jolan a » jolan e (Expandir a Pesquisa), jolanta a (Expandir a Pesquisa), jolande a (Expandir a Pesquisa)
chem d » chem de (Expandir a Pesquisa), chem _ (Expandir a Pesquisa), chem e (Expandir a Pesquisa)
j der » j dery (Expandir a Pesquisa), _ der (Expandir a Pesquisa), j del (Expandir a Pesquisa)
i.l m » d.l m (Expandir a Pesquisa), ill m (Expandir a Pesquisa), j.l m (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 der chem d maier i.l m ) or ( j maher h _ walter jolan a ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j der chem d maier i.l m ) OR ( j maher h _ walter jolan a ))*.