Alén, R. 2000. Basic chemistry of wood delignification. In: Stenius, P. (Ed.). Forest Products Chemistry. Fapet Oy, Helsinki, Finland. Pp. 58−104
Willför, S., Alén, R., van Dam, J., Liu, Z., Tähtinen, M. and Koskinen, K. 2011. Raw materials. In: Fardim, P. (Ed.). Chemical Pulping Part 1, Fibre Chemistry and Technology. 2nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 16−186.
Virkola, N.-E., Pikka, O. and Keitaanniemi, O. 1983. Sulfaattisellun valmistus. In: Virkola, N.-E. (Ed.). Puumassan valmistus. Suomen Paperi-insinöörien Yhdistyksen oppi- ja käsikirja II, osa 1. Teknillisten Tieteiden Akatemia, Helsinki, Finland. Pp. 291–410.
Gustafsson, J., Alén, R., Engström, J., Korpinen, R., Kuusisto, P., Leavitt, A, Olsson, K., Piira, J., Samuelsson, A. and Sundquist, J. 2011. Pulping. In: Fardim, P. (Ed.). Chemical Pulping Part 1, Fibre Chemistry and Technology. 2nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 187–381.
Alén, R. 2011. Principles of biorefining. In: Alén, R. (Ed.). Biorefining of Forest Resources. Paper Engineers’ Association, Helsinki, Finland. Pp. 55–114.
Germgård, U., Annergren, G. and Olsson, B. 2000. Fibrelines. In: In: Fardim, P. (Ed.). Chemical Pulping Part 1, Fibre Chemistry and Technology. 2nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 675–728.
Chirat, C., Hostachy, J.-C., Paloniemi, J., Pelin, K., Pohjanvesi, S., Nordén, S., Vesala, R. and Wennerström, M. 2011. Bleaching. In: Fardim, P. (Ed.). Chemical Pulping Part 1, Fibre Chemistry and Technology. 2nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 457–599.