Trumpet parts
http://hz.imslp.info/files/imglnks/usimg/d/d7/IMSLP43534-PMLP08063-Mahler-Sym5.Trumpet.pdf
French horn parts
http://hz.imslp.info/files/imglnks/usimg/7/7a/IMSLP43533-PMLP08063-Mahler-Sym5.Horn.pdf
Low brass partshttp://hz.imslp.info/files/imglnks/usimg/e/ef/IMSLP43535-PMLP08063-Mahler-Sym5.LowBrass.pdf
http://hz.imslp.info/files/imglnks/usimg/8/86/IMSLP38778-PMLP09057-Bruckner-Sym4.Trumpet.pdf
http://hz.imslp.info/files/imglnks/usimg/7/78/IMSLP38777-PMLP09057-Bruckner-Sym4.Horn.pdf
Low brass parts
http://hz.imslp.info/files/imglnks/usimg/a/a0/IMSLP38779-PMLP09057-Bruckner-Sym4.LowBrass.pdf