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31. "Contravariant Functors on Finite Sets and Stirling Numbers," The Lambek Festschrift. Theory Appl. Categ. 6 (1999), 65-76.

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39. (With M. Grandis) "Lax Kan extensions for double categories ," Cahiers Topologie Géom. Différentielle Catég. Vol. XLVIII (2007), pp 163-199.

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50. (With M. Grandis) "Intercategories: a framework for three-dimensional category theory" J. Pure Appl. Algebra (2017), Vol. 221, Issue 5, pp. 999-1054.

51. (With M. Grandis) "An introduction to multiple categories (on weak and lax multiple categories, I)" Cahiers Topologie Géom. Différentielle Catég., 57 (2016), 103-159.

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53. (With M. Grandis) "Limits in multiple categories (on weak and lax multiple categories, II)" Cahiers Topologie Géom. Différentielle Catég. Vol. XVIII (2017), 3-48.

54. (With M. Grandis) "Adjoints for multiple categories (on weak and lax multiple categories, III)" Cah. Topol. Géom. Différ. Catég. 58 (2017), no. 1, 3-48.

55. (With M. Grandis) "Span and Cospan Representations of Weak Double Categories", Categories and General Algebraic Structures with Applications. Volume 6, Speical Issue on the Occasion of Banaschewski's 90th Birthday (I), Winter and Spring 2017, 85-105.

56. (With M. Grandis) "A multiple category of lax multiple categories", Cahiers Topologie Géom. Différentielle Catég. 58 (2017), 195-212.

57. (With M. Grandis) "Persistent double limits", Cahiers Topologie Géom. Différentielle Catég. Vol. LX (2019), 255-297.

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60. "Retrocells", Theory and Applications of Categories, Vol. 40, No. 5, 2024, pp. 130-179.

61. "Taut functors and the difference operator", https://doi.org/10.48550/arXiv.2407.21129

62. "Multivariare Functorial Difference", https://doi.org/10.48550/arXiv.2409.09494