https://imslp.org/wiki/6_Cello_Duos,_W_4.37-42_(Viotti,_Giovanni_Battista)
6 Cello Duos, W 4.37-42 (Viotti, Giovanni Battista) - IMSLP
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https://www.halleonard.com/product/49006021/6-duos-op-50-vol-2-nos-4-6
6 Duos, Op. 50 Vol. 2: Nos. 4-6 - Cello Duet (Sheet Music) Schott (49006021) by Hal Leonard
Buy the official Hal Leonard Schott, '6 Duos, Op. 50 Vol. 2: Nos. 4-6 - Cello Duet' (Sheet Music)
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https://www.hickeys.com/music/chamber_music/string_ensembles/string_duets/products/sku140506-various-disney-songs-for-violin-and-cello-duet.php
Various Disney Songs for Violin and Cello Duet for String Duos
Various Disney Songs for Violin and Cello Duet for String Duos
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https://www.jackspipesandhammers.co.uk/product/3-duos-op-6-for-violin-cello/
3 Duos op.6 for violin & cello | Jacks, Pipes & Hammers
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